We ship from multiple warehouses throughout the USA
to get you what you need as fast as possible!
Millions of items in stock!
Fast online checkout - No account required
Cart 0

Threading Products - Taps For Sale | Benchmark Tooling - (25001 Products)


Made in USA - 1/2-20 UNF 3B 4 Flute Chrome Finish High Speed Steel Straight Flute Standard Hand Tap - Taper, Right Hand Thread, 3-3/8" OAL, 1-21/32" Thread Length, H3 Limit, Oversize


Item #: 74364225
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Taper chamfers also known as starter taps have a longer chamfer and require a less aggressive cutting action. They have 7 to 10 threads.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Product Specifications
Tap Type Standard Hand Tap
Thread Size (Inch) 1/2-20
Class of Fit 3B
Thread Limit H3
Number of Flutes 4
Chamfer Taper
Material High Speed Steel
Finish/Coating Chrome
Thread Direction Right Hand
Through Coolant NonThrough Coolant
Thread Standard UNF
Overall Length (Inch) 3-3/8
Oversize No
Thread Length (Inch) 1-21/32
Shank Diameter (Decimal Inch) 0.3670
Square Length (Inch) 7/16
Square Size (Decimal Inch) 0.2750
Material Application Ferrous Metals; Non-Ferrous Metals; Non-Metallic Materials

$35.43

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Emuge - 1/8-27 NPS, 45° Helix, 4 Flutes, Bottoming Chamfer, TiN Finish, Cobalt, Spiral Flute Pipe Tap - Right Hand Flute, 0.2756" Shank Diam, 0.7087" Thread Length, 0.2165" Square Size, Series Enorm


Item #: 84222876
Brand: Emuge
Model #: C0513700.5858
Exact Tooling IR#: 04

Features and Benefits

NPS (National Pipe Straight) refers to American National Standard Straight Pipe. They are commonly used for threads in pipe couplings.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.
Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
Product Specifications
Thread Size (Inch) 1/8-27
Thread Standard NPS
Material Cobalt
Finish/Coating TiN
Number of Flutes 4
Helix Angle 45
Thread Length (Decimal Inch) 0.7087
Series/List Enorm
Shank Diameter (Decimal Inch) 0.2756
Square Size (Decimal Inch) 0.2165
Material Application Aluminum Alloys; Copper; Copper Alloys; Stainless Steel; Steel
Flute Direction Right Hand
Chamfer Bottoming

$130.20

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

OSG - #8-32 UNC, 2 Flute, elektraLUBE Finish, High Speed Steel Spiral Point Tap - Plug Chamfer, Right Hand Thread, 2-1/8" OAL, 3/4" Thread Length, Series 105


Item #: 64944739
Brand: OSG
Model #: 2005002
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
elektraLUBE prevents welding, loading and galling between the tap and the workpiece. It is commonly used on stainless steels, high nickel alloys, aluminum and copper. elektraLUBE is a proprietary coating exclusive to OSG Tap and Die, Inc.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Product Specifications
Thread Size (Inch) #8-32
Number of Flutes 2
Chamfer Plug
Thread Limit H4
Finish/Coating elektraLUBE
Material High Speed Steel
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Inch) 2-1/8
Oversize No
Thread Standard UNC
Thread Length (Inch) 3/4
Series/List 105

$13.38

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Regal Cutting Tools - #10-24 UNC, H3, 3 Flute, Plug Chamfer, Bright Finish, High Speed Steel Hand STI Tap - 2-1/2" OAL, 2B Class of Fit


Item #: 58868399
Brand: Regal Cutting Tools
Model #: 007033AS
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
Product Specifications
Thread Size (Inch) #10-24
Class of Fit 2B
Thread Limit H3
Number of Flutes 3
Chamfer Plug
Finish/Coating Bright
Overall Length (Inch) 2-1/2
Thread Standard UNC
Material High Speed Steel

$18.03

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

OSG - 5/16-24 UNF, H2, 4 Flute, Plug Chamfer, Bright Finish, High Speed Steel Hand STI Tap - 2-15/16" OAL, 1-1/4" Thread Length, 0.286" Square Size, 3B Class of Fit, Series 126


Item #: 48904346
Brand: OSG
Model #: 12600500
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
Product Specifications
Thread Size (Inch) 5/16-24
Class of Fit 3B
Thread Limit H2
Number of Flutes 4
Chamfer Plug
Finish/Coating Bright
Overall Length (Inch) 2-15/16
Thread Standard UNF
Thread Length (Inch) 1-1/4
Shank Diameter (Decimal Inch) 0.3810
Square Size (Decimal Inch) 0.2860
Material High Speed Steel
Series/List 126

$25.69

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Heli-Coil - M10x1.50 Metric Coarse, D3, 4 Flute, Plug Chamfer, Bright Finish, High Speed Steel Hand STI Tap - 85.72mm OAL, 42.07mm Thread Length, 11.11mm Square Length, 6.98mm Square Size


Item #: 99193112
Brand: Heli-Coil
Model #: 4687-10
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
Product Specifications
Thread Size (mm) M10x1.50
Thread Limit D3
Number of Flutes 4
Chamfer Plug
Finish/Coating Bright
Overall Length (mm) 85.72
Thread Standard Metric Coarse
Thread Length (mm) 42.07
Shank Diameter (mm) 9.32
Square Length (mm) 11.11
Square Size (mm) 6.98
Material High Speed Steel
Material Application Aluminum; Magnesium; Mild Steel; Stainless Steel

$41.66

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

OSG - M5x0.80 Metric Coarse, 3 Flute, Oxide Finish, Vanadium High Speed Steel Spiral Point Tap - Plug Chamfer, Right Hand Thread, 2-3/8" OAL, 7/8" Thread Length, 0.194" Shank Diam, 6H Class of Fit, Series 289


Item #: 64047368
Brand: OSG
Model #: 2890801
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Vanadium High Speed Steel (HSSE) is made of high speed steel, carbon, vanadium carbide and other alloys to increase abrasive wear resistance and toughness. It is commonly used in general applications on stainless steels and high silicon aluminums.
Product Specifications
Thread Size (mm) M5x0.80
Number of Flutes 3
Chamfer Plug
Class of Fit 6H
Thread Limit D4
Finish/Coating Oxide
Material Vanadium High Speed Steel
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Inch) 2-3/8
Oversize No
Thread Standard Metric Coarse
Thread Length (Inch) 7/8
Series/List 289
Shank Diameter (Decimal Inch) 0.1940
Square Size (Decimal Inch) 0.1520
Material Application Alloy Steel; Carbon Steel; Cast Iron; Die Steel; Hardened Steel; Stainless Steel

$21.11

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Walter-Prototyp - 1-1/2 - 6 UNC, 4 Flute, Bright Finish, Cobalt Spiral Point Tap - Plug Chamfer, Right Hand Thread, 200mm OAL, 48mm Thread Length, 28mm Shank Diam, 2B Class of Fit, Series P22360


Item #: 36356905
Brand: Walter-Prototyp
Model #: 6149448
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Thread Size (Inch) 1-1/2 - 6
Number of Flutes 4
Chamfer Plug
Class of Fit 2B
Finish/Coating Bright
Material Cobalt
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Decimal Inch) 7.8740
Overall Length (mm) 200.00
Oversize No
Thread Standard UNC
Material Grade M35
Thread Length (Decimal Inch) 1.8898
Thread Length (mm) 48.00
Series/List P22360
Neck Length (Decimal Inch) 2.0472
Tapping Depth (mm) 100.00
Shank Diameter (Decimal Inch) 1.1024
Shank Diameter (mm) 28.00
Square Size (Decimal Inch) 0.8661
Square Size (mm) 22.00

$468.27

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Guhring - #3-56 UNF, Oxide Finish, Cobalt Spiral Point Tap - Plug Chamfer, Right Hand Thread, 1.811" OAL, 1/2" Thread Length, 0.141" Shank Diam, 2B/3B Class of Fit, Series 4405


Item #: 43879824
Brand: Guhring
Model #: 9044052025150
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Thread Size (Inch) #3-56
Chamfer Plug
Class of Fit 2B/3B
Thread Limit H2
Finish/Coating Oxide
Material Cobalt
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Decimal Inch) 1.8110
Oversize No
Thread Standard UNF
Thread Length (Decimal Inch) 0.5000
Series/List 4405
Neck Length (Decimal Inch) 0.1310
Shank Diameter (Decimal Inch) 0.1410
Square Size (Decimal Inch) 0.1100
Material Application Aluminum; Aluminum Alloys; Case Hardened Steel; Cast Iron; Free Cutting Steel; Heat Treatable Steel; Stainless Steel; Structural Steel; Sulfured Steel; Tool Steel

$15.53

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Emuge - M8x1.25 3 Flute Bright Finish Cobalt Spiral Flute Extension Tap - Modified Bottoming Chamfer, 180mm OAL, 6H Class of Fit, Series Enorm


Item #: 69774404
Brand: Emuge
Model #: C2503000.0080
Exact Tooling IR#: 04

Features and Benefits

Modified bottoming chamfers similar to bottoming chamfers, but longer and have more teeth. They are used for threading to the bottom of blind holes and constructed of 2 to 2-1/2 threads.
Spiral flute taps are used for threading blind holes in aluminum, brass and softer steels. The flute geometry draws the chips away from the hole where chip disposal may be an issue.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Thread Size M8x1.25
Overall Length (mm) 180.00
Chamfer Modified Bottoming
Class of Fit 6H
Number of Flutes 3
Tap Type Spiral Flute
Finish/Coating Bright
Flute Direction Right Hand
Material Cobalt
Thread Length (Decimal) 0.7874
Thread Direction Right Hand
Square Size (Decimal Inch) 0.1929
Flute Direction Right Hand
Series/List Enorm
Shank Size Type Reduced

$112.08

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Sandvik Coromant - M20x2.50 Metric 4 Flute 6H Modified Bottoming Spiral Flute Tap - Powdered Metal, Oxide Finish, 140mm OAL, Right Hand Flute, Right Hand Thread, Series CoroTap 300


Item #: 49407158
Brand: Sandvik Coromant
Model #: 6539466
Exact Tooling IR#: 04

Features and Benefits

Modified bottoming chamfers are similar to bottoming chamfers, but they are longer and have more teeth. They are used for threading blind holes and have 2 to 2-1/2 threads.
Powdered Metal (PM) is tougher and more cost effective than solid carbide. It is commonly used on highly abrasive materials including high silicon aluminums.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Fast Spiral Flutes with 40-53 degree angles are suitable for ductile materials like aluminum and copper; medium to high carbon steels and free machining stainless steels.
Product Specifications
Thread Size (mm) M20x2.50
Chamfer Modified Bottoming
Class of Fit 6H
Number of Flutes 4
Material Powdered Metal
Finish/Coating Oxide
Thread Direction Right Hand
Flute Direction Right Hand
Through Coolant NonThrough Coolant
Overall Length (Decimal Inch) 5.5118
Overall Length (mm) 140.00
Helix Angle 45
Thread Standard Metric
Thread Length (Decimal Inch) 0.9843
Thread Length (mm) 25.00
Flute Type Fast Spiral
Series/List CoroTap 300
Neck Length (Decimal Inch) 2.7559
Tapping Depth (Decimal Inch) 3.7402
Tapping Depth (mm) 95.00
Shank Diameter (Decimal Inch) 0.6299
Shank Diameter (mm) 16.00

$132.66

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Kennametal - M2.5x0.45 Metric, 2 Flute, Oxide Finish, Vanadium High Speed Steel Spiral Point Tap - Plug Chamfer, Right Hand Thread, 50mm OAL, 7mm Thread Length, 2.8mm Shank Diam, 6H Class of Fit, Series T820


Item #: 68483072
Brand: Kennametal
Model #: 5417208
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Vanadium High Speed Steel (HSSE) is made of high speed steel, carbon, vanadium carbide and other alloys to increase abrasive wear resistance and toughness. It is commonly used in general applications on stainless steels and high silicon aluminums.
Product Specifications
Thread Size (mm) M2.5x0.45
Number of Flutes 2
Chamfer Plug
Class of Fit 6H
Finish/Coating Oxide
Material Vanadium High Speed Steel
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Decimal Inch) 1.9700
Overall Length (mm) 50.00
Oversize No
Thread Standard Metric
Thread Length (Decimal Inch) 0.2800
Thread Length (mm) 7.00
Series/List T820
Neck Length (Decimal Inch) 0.3100
Style Plug
Tapping Depth (Inch) 0.5900
Tapping Depth (mm) 15.00
Shank Diameter (Decimal Inch) 0.1102
Shank Diameter (mm) 2.80
Square Length (Inch) 0.2000
Square Size (Decimal Inch) 0.0830
Square Size (mm) 2.10

$45.92

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Emuge - M16x2.00 M 3 Flute BT Plug Spiral Flute Tap - High Speed Steel, Nitride Finish, 110mm OAL, Right Hand Flute, Right Hand Thread, Series Rekord B-VA


Item #: 47943956
Brand: Emuge
Model #: C0203000.1060
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Nitride is a thin, hard-shell coating that supports surface hardness of the tool. It is commonly used where abrasive or wearing conditions exist.
Spiral flutes are constructed of a high flute angle to remove chips more easily.
Product Specifications
Thread Size (mm) M16x2.00
Chamfer Plug
Class of Fit BT
Number of Flutes 3
Material High Speed Steel
Finish/Coating Nitride
Thread Direction Right Hand
Flute Direction Right Hand
Through Coolant NonThrough Coolant
Overall Length (mm) 110.00
Helix Angle 0
Thread Standard M
Thread Length (mm) 27.00
Flute Type Spiral
Style Spiral Flute
Series/List Rekord B-VA
Tapping Depth (mm) 27.00
Shank Diameter (mm) 12.00
Material Application Stainless Steel; Steel

$179.69

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

DORMER - 1-8 UNC, 4 Flute, Oxide Finish, Cobalt Spiral Point Tap - Plug Chamfer, Right Hand Thread, 160mm OAL, 38mm Thread Length, 18mm Shank Diam, 2B Class of Fit, Series EP21


Item #: 65676371
Brand: DORMER
Model #: 0138359
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Thread Size (Inch) 1-8
Number of Flutes 4
Chamfer Plug
Class of Fit 2B
Finish/Coating Oxide
Material Cobalt
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Decimal Inch) 6.3040
Overall Length (mm) 160.00
Oversize No
Thread Standard UNC
Thread Length (Decimal Inch) 1.4972
Thread Length (mm) 38.00
Series/List EP21
Shank Diameter (Decimal Inch) 0.7092
Shank Diameter (mm) 18.00
Square Size (Decimal Inch) 0.5713
Square Size (mm) 14.50
Material Application Alloy Steel; Carbon Steel; Cast Iron; Free Machining Stainless Steel; Hardened Steel; Stainless Steel; Steel; Structural Steel

$461.34

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Hertel - M14x2.00 Metric Coarse, 3 Flute, Bright Finish, High Speed Steel Spiral Point Tap - Plug Chamfer, Right Hand Thread, 3-19/32" OAL, 1-21/32" Thread Length, 0.429" Shank Diam


Item #: 07681463
Brand: Hertel
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Product Specifications
Thread Size (mm) M14x2.00
Number of Flutes 3
Chamfer Plug
Thread Limit D3
Finish/Coating Bright
Material High Speed Steel
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Inch) 3-19/32
Oversize No
Thread Standard Metric Coarse
Thread Length (Inch) 1-21/32
Shank Diameter (Decimal Inch) 0.4290
Square Length (Inch) 1/2
Square Size (Decimal Inch) 0.3220

$59.74

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Hertel - #12-28 UNF, 2 Flute, TiN Finish, High Speed Steel Spiral Point Tap - Plug Chamfer, Right Hand Thread, 2-3/8" OAL, 15/16" Thread Length, 0.22" Shank Diam, 2B/3B Class of Fit


Item #: 07679376
Brand: Hertel
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Product Specifications
Thread Size (Inch) #12-28
Number of Flutes 2
Chamfer Plug
Class of Fit 2B/3B
Thread Limit H3
Finish/Coating TiN
Material High Speed Steel
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Inch) 2-3/8
Oversize No
Thread Standard UNF
Thread Length (Inch) 15/16
Shank Diameter (Decimal Inch) 0.2200
Square Length (Inch) 9/32
Square Size (Decimal Inch) 0.1650

$14.00

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Walter-Prototyp - 3/8-18 NPT, 30° Helix, 5 Flutes, Modified Bottoming Chamfer, Oxide Finish, Cobalt, Spiral Flute Pipe Tap - Right Hand Flute, 0.6299" Shank Diam, 0.7874" Thread Length, 0.4724" Square Size, Series 25567


Item #: 36329985
Brand: Walter-Prototyp
Model #: 5078980
Exact Tooling IR#: 04

Features and Benefits

NPT (National Pipe Taper) refers to American National Standard Taper Pipe Threads. They are commonly used for general purpose applications and require a sealant.
Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
Modified bottoming chamfers are similar to bottoming chamfers, but they are longer and have more teeth. They are used for threading to the bottom of blind holes and have 2 to 2-1/2 threads.
Product Specifications
Thread Size (Inch) 3/8-18
Thread Standard NPT
Material Cobalt
Finish/Coating Oxide
Number of Flutes 5
Helix Angle 30
Material Grade M35
Thread Length (Decimal Inch) 0.7874
Series/List 25567
Shank Diameter (Decimal Inch) 0.6299
Square Size (Decimal Inch) 0.4724
Material Application Cast Steel; Grey Cast Iron; Malleable Cast Iron; Spheroidal Cast Iron; Stainless Steel; Steel; Vermicular Cast Iron
Flute Direction Right Hand
Chamfer Modified Bottoming

$192.06

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

OSG - 1/4-20 UNC, 3 Flute, HR Finish, Powdered Metal Spiral Point Tap - Plug Chamfer, Right Hand Thread, 2-23/32" OAL, 1-1/8" Thread Length, 0.318" Shank Diam, 3B Class of Fit, Series 337NI


Item #: 57691065
Brand: OSG
Model #: 3370014203
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
HR coating offers superior wear resistance for significantly longer tool life.
Powdered Metal (PM) is tougher and more cost effective than solid carbide. It is commonly used on highly abrasive materials including high silicon aluminums.
Product Specifications
Thread Size (Inch) 1/4-20
Number of Flutes 3
Chamfer Plug
Class of Fit 3B
Thread Limit H3
Finish/Coating HR
Material Powdered Metal
Through Coolant NonThrough Coolant
Thread Direction Right Hand
Overall Length (Inch) 2-23/32
Oversize No
Thread Standard UNC
Thread Length (Inch) 1-1/8
Series/List 337NI
Shank Diameter (Decimal Inch) 0.3180
Square Size (Decimal Inch) 0.2380

$70.63

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Heli-Coil - #10-32 UNF, H2, 2 Flutes, Plug Chamfer, Bright Finish, High Speed Steel Spiral Point STI Tap - 2-1/2" OAL, 0.255" Shank Diam, 1" Thread Length, 5/16" Square Length, 0.191" Square Size, 3B Class of Fit


Item #: 64833205
Brand: Heli-Coil
Model #: 3FSB
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Thread Size (Inch) #10-32
Class of Fit 3B
Thread Limit H2
Number of Flutes 2
Chamfer Plug
Finish/Coating Bright
Overall Length (Inch) 2-1/2
Thread Standard UNF
Material High Speed Steel
Thread Length (Inch) 1
Shank Diameter (Decimal Inch) 0.2550
Square Length (Inch) 5/16
Square Size (Decimal Inch) 0.1910

$25.69

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

OSG - 9/16-12 UNC, H4, 3 Flutes, Plug Chamfer, V Finish, High Speed Steel Spiral Point STI Tap - 4-1/32" OAL, 0.542" Shank Diam, 1-13/16" Thread Length, 0.406" Square Size, 2B Class of Fit, Series 301


Item #: 49145048
Brand: OSG
Model #: 30102708
Exact Tooling IR#: 04

Features and Benefits

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
V is a multi-layered TiCN coating that is harder and has greater wear resistance than TiN. It is used for applications in cast iron, steel, stainless steel, nickel alloys and aluminum. V is a proprietary coating exclusive to OSG Tap and Die, Inc.
Product Specifications
Thread Size (Inch) 9/16-12
Class of Fit 2B
Thread Limit H4
Number of Flutes 3
Chamfer Plug
Finish/Coating V
Overall Length (Inch) 4-1/32
Thread Standard UNC
Material High Speed Steel
Thread Length (Inch) 1-13/16
Shank Diameter (Decimal Inch) 0.5420
Square Size (Decimal Inch) 0.4060
Series/List 301

$103.39

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It