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High-Speed Steel External Threading Lathe Tools
Cut threads in plastic and most metal with these high-speed steel tools. A neutral cut direction means these tools can cut from either right to left or left to right.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||
|---|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Thread Type | Thread Shape | Overall Lg. | Nose Angle | For Use On | Each | |
Neutral | ||||||||
| 1/4" | 1/4" | UNC, UNS, UNF | V | 2 1/2" | 60° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 5/16" | 5/16" | UNC, UNS, UNF | V | 2 1/2" | 60° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | UNC, UNS, UNF | V | 3" | 60° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
High-Speed Steel Turning Lathe Tools
Machine plastic and most metal with these high-speed steel tools. Right-handed tools cut from right to left, left-handed tools cut from left to right, and neutral tools can cut in either direction.
Tools that are only for use on brass have a special shape to ensure the best finish on brass.
For technical drawings and 3-D models, click on a part number.
Style 1—For Along-the-Length Turning, External Profiling, and Facing
Neutral
Neutral
Shank | |||||||
|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Overall Lg. | Tip Radius | Nose Angle | For Use On | Each | |
Neutral | |||||||
| 1/4" | 1/4" | 2 1/2" | 1/16" | 27° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 1/4" | 1/4" | 2 1/2" | 1/16" | 27° | Brass | 0000000 | 00000 |
| 5/16" | 5/16" | 2 1/2" | 1/16" | 27° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 5/16" | 5/16" | 2 1/2" | 1/16" | 27° | Brass | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 1/16" | 27° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 1/16" | 27° | Brass | 0000000 | 00000 |
Style 2—For Chamfering and External Profiling
Right Hand
Left Hand
Right Hand
Left Hand
Shank | |||||||
|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Overall Lg. | Tip Radius | Side Cutting Edge Angle | For Use On | Each | |
Right Hand | |||||||
| 1/4" | 1/4" | 2 1/2" | 1/16" | 45° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 5/16" | 5/16" | 2 1/2" | 1/16" | 45° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 1/16" | 45° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
Left Hand | |||||||
| 1/4" | 1/4" | 2 1/2" | 1/16" | 45° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 5/16" | 5/16" | 2 1/2" | 1/16" | 45° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 1/16" | 45° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
Style 3—For Chamfering
Right Hand
Left Hand
Right Hand
Left Hand
Shank | |||||||
|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Overall Lg. | Side Cutting Edge Angle | End Cutting Edge Angle | For Use On | Each | |
Right Hand | |||||||
| 1/4" | 1/4" | 2 1/2" | 32° | 64° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 5/16" | 5/16" | 2 1/2" | 32° | 64° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 32° | 64° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
Left Hand | |||||||
| 1/4" | 1/4" | 2 1/2" | 32° | 64° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 5/16" | 5/16" | 2 1/2" | 32° | 64° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 32° | 64° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
Style 4—For Along-the-Length Turning and Chamfering
Right Hand
Left Hand
Right Hand
Left Hand
Shank | |||||||
|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Overall Lg. | Side Cutting Edge Angle | End Cutting Edge Angle | For Use On | Each | |
Right Hand | |||||||
| 1/4" | 1/4" | 2 1/2" | 28° | 31° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 5/16" | 5/16" | 2 1/2" | 28° | 31° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 28° | 31° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
Left Hand | |||||||
| 1/4" | 1/4" | 2 1/2" | 28° | 31° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 5/16" | 5/16" | 2 1/2" | 28° | 31° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3" | 28° | 31° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
High-Speed Steel External Grooving Lathe Tools
Cut grooves in plastic and most metals with these high-speed steel tools. They can plunge directly into the workpiece and also cut from right to left and left to right.
For technical drawings and 3-D models, click on a part number.
Shank | Groove | |||||||
|---|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Wd. | Dp. | Overall Lg. | End Cutting Edge Angle | For Use On | Each | |
Neutral | ||||||||
| 1/4" | 1/4" | 1/4" | 1/4" | 2 1/2" | 0° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 5/16" | 5/16" | 5/16" | 5/16" | 2 1/2" | 0° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
| 3/8" | 3/8" | 3/8" | 3/8" | 3" | 0° | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 00000 |
High-Speed Steel Turning Lathe Tool Sets
Style 1, Neutral
Style 2, Right Hand
Style 3, Left Hand
Style 3, Right Hand
Style 4, Left Hand
Style 4, Right Hand
Style 6, Neutral
Style 2, Left Hand
Style 5, Neutral
Machine plastic and most metal with these high-speed steel tools. Right-handed tools cut from right to left, left-handed tools cut from left to right, and neutral tools can cut in either direction.
Style 1 tools can perform along-the-length turning, external profiling, and facing.
Style 2 tools can perform external profiling and chamfering.
Style 3 tools are for chamfering.
Style 4 tools can perform along-the-length turning and chamfering.
Style 5 tools can plunge directly into the workpiece for external grooving.
Style 6 tools are for external threading.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||
|---|---|---|---|---|---|---|---|
| Wd. | Ht. | O'all Lg. | No. of Pieces | Includes | For Use On | Set | |
For Along-the-Length Turning, Chamfering, External Grooving, External Profiling, External Threading, and Facing | |||||||
| 1/4" | 1/4" | 2 1/2" | 10 | One Style 1 neutral lathe tool One Style 1 neutral lathe tool for brass only One Style 2 right-hand lathe tool One Style 2 left-hand lathe tool One Style 3 right-hand lathe tool One Style 3 left-hand lathe tool One Style 4 right-hand lathe tool One Style 4 left-hand lathe tool One Style 5 neutral lathe tool One Style 6 neutral lathe tool | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 0000000 |
| 5/16" | 5/16" | 2 1/2" | 10 | One Style 1 neutral lathe tool One Style 1 neutral lathe tool for brass only One Style 2 right-hand lathe tool One Style 2 left-hand lathe tool One Style 3 right-hand lathe tool One Style 3 left-hand lathe tool One Style 4 right-hand lathe tool One Style 4 left-hand lathe tool One Style 5 neutral lathe tool One Style 6 neutral lathe tool | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
| 3/8" | 3/8" | 3" | 10 | One Style 1 neutral lathe tool One Style 1 neutral lathe tool for brass only One Style 2 right-hand lathe tool One Style 2 left-hand lathe tool One Style 3 right-hand lathe tool One Style 3 left-hand lathe tool One Style 4 right-hand lathe tool One Style 4 left-hand lathe tool One Style 5 neutral lathe tool One Style 6 neutral lathe tool | Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 0000000 | 000000 |
Face Milling Cutters
Face-Milling Cut Style
Also known as shell cutters, these high-speed steel cutters are good for face and side milling. They have a large mill diameter for removing a large amount of material per pass. Compared to fly cutters, they’re more rigid, which makes for a better finish. Use with an R8 shank arbor (sold separately).
For technical drawings and 3-D models, click on a part number.
Mill | ||||||||
|---|---|---|---|---|---|---|---|---|
| Thick. | Dia. | Number of Teeth | Arbor Hole Dia. | Helix Angle | Material | For Use On | Each | |
Uncoated | ||||||||
| 1" | 1 1/4" | 8 | 1/2" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
| 1 1/8" | 1 1/2" | 8 | 1/2" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 3/8" | 2" | 10 | 3/4" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 1/2" | 2 1/4" | 10 | 1" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 5/8" | 2 1/2" | 10 | 1" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 3/4" | 3" | 12 | 1 1/4" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 7/8" | 3 1/2" | 12 | 1 1/4" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 2 1/4" | 4" | 14 | 1 1/2" | 30° | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Taps for Helical Inserts
Plug Chamfer
Bottoming Chamfer
Add threads to holes in preparation for installing helical inserts. These taps are made of uncoated high-speed steel and are for use on most metal and plastic. The square shank is compatible with tap wrenches and tap holders for drill presses and milling machines.
Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
Bottoming-chamfer taps cut into the workpiece with just 1-2 chamfered threads. This short chamfer lets them thread holes closer to the bottom than other taps, but they require more torque to start threads.
For technical drawings and 3-D models, click on a part number.
Inch
Drill Bit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Insert Thread Size  | Thread Lg. | Overall Lg. | Max. Tapping Dp. | Size | Decimal Size Equivalent | No. of Flutes | For Insert Thread Type | Pitch Dia. Limit | Each | |
Plug Chamfer | ||||||||||
Uncoated High-Speed Steel | ||||||||||
| 0-80 | 3/8" | 1 11/16" | 3/8" | 52 ga. | 0.0635" | 3 | UNF | H1 | 000000000 | 000000 |
| 1-64 | 1/2" | 1 13/16" | 1/2" | 46 ga. | 0.081" | 3 | UNC | H1 | 000000000 | 00000 |
| 2-56 | 9/16" | 1 7/8" | 9/16" | 41 ga. | 0.096" | 3 | UNC | H1 | 000000000 | 00000 |
| 3-48 | 5/8" | 1 15/16" | 5/8" | 7/64" | 0.1094" | 3 | UNC | H1 | 000000000 | 00000 |
| 3-56 | 5/8" | 1 15/16" | 5/8" | 36 ga. | 0.1065" | 3 | UNF | H1 | 000000000 | 00000 |
| 4-40 | 11/16" | 2" | 11/16" | 31 ga. | 0.12" | 3 | UNC | H1 | 000000000 | 00000 |
| 4-48 | 11/16" | 2" | 11/16" | 31 ga. | 0.12" | 3 | UNF | H1 | 000000000 | 00000 |
| 5-40 | 3/4" | 2 1/8" | 3/4" | 29 ga. | 0.136" | 3 | UNC | H1 | 000000000 | 00000 |
| 6-32 | 7/8" | 2 3/8" | 7/8" | 25 ga. | 0.1495" | 3 | UNC | H2 | 000000000 | 00000 |
| 6-40 | 3/4" | 2 1/8" | 3/4" | 25 ga. | 0.1495" | 3 | UNF | H1 | 000000000 | 00000 |
| 8-32 | 15/16" | 2 3/8" | 15/16" | 16 ga. | 0.177" | 3 | UNC | H2 | 000000000 | 00000 |
| 8-36 | 15/16" | 2 3/8" | 15/16" | 16 ga. | 0.177" | 3 | UNF | H1 | 000000000 | 00000 |
| 10-24 | 1" | 2 1/2" | 1" | 5 ga. | 0.2055" | 3 | UNC | H2 | 000000000 | 00000 |
| 10-32 | 1" | 2 1/2" | 1" | 13/64" | 0.2031" | 3 | UNF | H2 | 000000000 | 00000 |
| 12-24 | 1 1/8" | 2 23/32" | 1 1/8" | 1 ga. | 0.228" | 3 | UNC | H2 | 000000000 | 00000 |
| 1/4"-20 | 1 1/8" | 2 23/32" | 1 1/8" | H | 0.266" | 3 | UNC | H2 | 000000000 | 00000 |
| 1/4"-28 | 1 1/8" | 2 23/32" | 1 1/8" | 6.7 mm | 0.2637" | 3 | UNF | H2 | 000000000 | 00000 |
| 5/16"-18 | 1 1/4" | 2 15/16" | 1 1/4" | Q | 0.332" | 4 | UNC | H3 | 000000000 | 00000 |
| 5/16"-24 | 1 1/4" | 2 15/16" | 1 1/4" | 21/64" | 0.3281" | 4 | UNF | H2 | 000000000 | 00000 |
| 3/8"-16 | 1 21/32" | 3 3/8" | 1 21/32" | X | 0.397" | 4 | UNC | H3 | 000000000 | 00000 |
| 3/8"-24 | 1 7/16" | 3 5/32" | 1 7/16" | 25/64" | 0.3906" | 4 | UNF | H2 | 000000000 | 00000 |
| 7/16"-14 | 1 21/32" | 3 19/32" | 1 21/32" | 29/64" | 0.4531" | 4 | UNC | H3 | 000000000 | 00000 |
| 7/16"-20 | 1 21/32" | 3 3/8" | 1 21/32" | 29/64" | 0.4531" | 4 | UNF | H3 | 000000000 | 00000 |
| 1/2"-13 | 1 13/16" | 3 13/16" | 1 13/16" | 17/32" | 0.5313" | 4 | UNC | H3 | 000000000 | 00000 |
| 1/2"-20 | 1 21/32" | 3 19/32" | 1 21/32" | 33/64" | 0.5156" | 4 | UNF | H3 | 000000000 | 00000 |
| 9/16"-12 | 1 13/16" | 4 1/32" | 1 13/16" | 19/32" | 0.5938" | 4 | UNC | H3 | 000000000 | 00000 |
| 9/16"-18 | 1 13/16" | 3 13/16" | 1 13/16" | 37/64" | 0.5781" | 4 | UNF | H3 | 000000000 | 00000 |
| 5/8"-11 | 2" | 4 1/4" | 2" | 21/32" | 0.6563" | 4 | UNC | H3 | 000000000 | 00000 |
| 5/8"-18 | 1 13/16" | 4 1/32" | 1 13/16" | 41/64" | 0.6406" | 4 | UNF | H3 | 000000000 | 000000 |
| 3/4"-10 | 2 7/32" | 4 11/16" | 2 7/32" | 25/32" | 0.7813" | 4 | UNC | H3 | 000000000 | 000000 |
| 3/4"-16 | 2" | 4 15/32" | 2" | 49/64" | 0.7656" | 4 | UNF | H3 | 000000000 | 000000 |
| 7/8"-9 | 2 1/2" | 5 1/16" | 2 1/2" | 29/32" | 0.9063" | 4 | UNC | H3 | 000000000 | 000000 |
| 7/8"-14 | 2 1/2" | 5 1/8" | 2 1/2" | 57/64" | 0.8906" | 4 | UNF | H3 | 000000000 | 000000 |
| 1"-8 | 2 9/16" | 5 3/4" | 2 9/16" | 1 1/32" | 1.0313" | 4 | UNC | H4 | 000000000 | 000000 |
| 1"-12 | 2 9/16" | 5 7/16" | 2 9/16" | 1 1/32" | 1.0313" | 4 | UNF | H4 | 000000000 | 000000 |
| 1"-14 | 2 9/16" | 5 7/16" | 2 9/16" | 1 1/32" | 1.0313" | 4 | UNF | H4 | 000000000 | 000000 |
| 1 1/8"-7 | 3" | 6 1/16" | 3" | 1 11/64" | 1.1719" | 4 | UNC | H4 | 000000000 | 000000 |
| 1 1/8"-12 | 2 9/16" | 5 3/4" | 2 9/16" | 1 5/32" | 1.1563" | 6 | UNF | H4 | 000000000 | 000000 |
| 1 1/4"-7 | 3" | 6 3/8" | 3" | 1 19/64" | 1.2969" | 4 | UNC | H4 | 000000000 | 000000 |
| 1 1/4"-8 | 3" | 6" | 3" | 1 1/4" | 1.25" | 4 | UN8 | H5 | 000000000 | 000000 |
| 1 1/4"-12 | 3" | 6 1/16" | 3" | 1 9/32" | 1.2813" | 6 | UNF | H4 | 000000000 | 000000 |
| 1 1/2"-6 | 3 3/16" | 7" | 3 3/16" | 1 35/64" | 1.5469" | 6 | UNC | H6 | 000000000 | 000000 |
| 1 1/2"-8 | 3" | 6 5/8" | 3" | 1 1/2" | 1.5" | 6 | UN8 | H5 | 000000000 | 000000 |
| 1 1/2"-12 | 3 3/16" | 6 11/16" | 3 3/16" | 1 17/32" | 1.5313" | 6 | UNF | H4 | 000000000 | 000000 |
| 1 3/4"-8 | 3 5/8" | 7 1/4" | 3 5/8" | 1 3/4" | 1.75" | 6 | UN8 | H5 | 000000000 | 000000 |
Bottoming Chamfer | ||||||||||
Uncoated High-Speed Steel | ||||||||||
| 0-80 | 3/8" | 1 11/16" | 3/8" | 52 ga. | 0.0635" | 3 | UNF | H1 | 000000000 | 00000 |
| 1-64 | 9/16" | 1 7/8" | 9/16" | 46 ga. | 0.081" | 3 | UNC | H1 | 000000000 | 00000 |
| 2-56 | 9/16" | 1 7/8" | 9/16" | 41 ga. | 0.096" | 3 | UNC | H1 | 000000000 | 00000 |
| 3-48 | 5/8" | 1 15/16" | 5/8" | 7/64" | 0.1094" | 3 | UNC | H1 | 000000000 | 00000 |
| 3-56 | 5/8" | 1 15/16" | 5/8" | 36 ga. | 0.1065" | 3 | UNF | H1 | 000000000 | 00000 |
| 4-40 | 11/16" | 2" | 11/16" | 31 ga. | 0.12" | 3 | UNC | H1 | 000000000 | 00000 |
| 4-48 | 11/16" | 2" | 11/16" | 31 ga. | 0.12" | 3 | UNF | H1 | 000000000 | 00000 |
| 5-40 | 3/4" | 2 1/8" | 3/4" | 29 ga. | 0.136" | 3 | UNC | H1 | 000000000 | 00000 |
| 6-32 | 7/8" | 2 3/8" | 7/8" | 25 ga. | 0.1495" | 3 | UNC | H2 | 000000000 | 00000 |
| 6-40 | 3/4" | 2 1/8" | 3/4" | 25 ga. | 0.1495" | 3 | UNF | H1 | 000000000 | 00000 |
| 8-32 | 15/16" | 2 3/8" | 15/16" | 16 ga. | 0.177" | 3 | UNC | H2 | 000000000 | 00000 |
| 8-36 | 15/16" | 2 3/8" | 15/16" | 16 ga. | 0.177" | 3 | UNF | H1 | 000000000 | 00000 |
| 10-24 | 1" | 2 1/2" | 1" | 5 ga. | 0.2055" | 3 | UNC | H2 | 000000000 | 00000 |
| 10-32 | 1" | 2 1/2" | 1" | 13/64" | 0.2031" | 3 | UNF | H2 | 000000000 | 00000 |
| 12-24 | 1 1/8" | 2 23/32" | 1 1/8" | 1 ga. | 0.228" | 3 | UNC | H2 | 000000000 | 00000 |
| 1/4"-20 | 1 1/8" | 2 23/32" | 1 1/8" | H | 0.266" | 3 | UNC | H2 | 000000000 | 00000 |
| 1/4"-28 | 1 1/8" | 2 23/32" | 1 1/8" | 6.7 mm | 0.2637" | 3 | UNF | H2 | 000000000 | 00000 |
| 5/16"-18 | 1 1/4" | 2 15/16" | 1 1/4" | Q | 0.332" | 4 | UNC | H3 | 000000000 | 00000 |
| 5/16"-24 | 1 1/4" | 2 15/16" | 1 1/4" | 21/64" | 0.3281" | 4 | UNF | H2 | 000000000 | 00000 |
| 3/8"-16 | 1 21/32" | 3 3/8" | 1 21/32" | X | 0.397" | 4 | UNC | H3 | 000000000 | 00000 |
| 3/8"-24 | 1 7/16" | 3 5/32" | 1 7/16" | 25/64" | 0.3906" | 4 | UNF | H2 | 000000000 | 00000 |
| 7/16"-14 | 1 21/32" | 3 19/32" | 1 21/32" | 29/64" | 0.4531" | 4 | UNC | H3 | 000000000 | 00000 |
| 7/16"-20 | 1 21/32" | 3 3/8" | 1 21/32" | 29/64" | 0.4531" | 4 | UNF | H3 | 000000000 | 00000 |
| 1/2"-13 | 1 13/16" | 3 13/16" | 1 13/16" | 17/32" | 0.5313" | 4 | UNC | H3 | 000000000 | 00000 |
| 1/2"-20 | 1 21/32" | 3 19/32" | 1 21/32" | 33/64" | 0.5156" | 4 | UNF | H3 | 000000000 | 00000 |
| 9/16"-12 | 1 13/16" | 4 1/32" | 1 13/16" | 19/32" | 0.5938" | 4 | UNC | H3 | 000000000 | 000000 |
| 9/16"-18 | 1 13/16" | 3 13/16" | 1 13/16" | 37/64" | 0.5781" | 4 | UNF | H3 | 000000000 | 000000 |
| 5/8"-11 | 2" | 4 1/4" | 2" | 21/32" | 0.6563" | 4 | UNC | H3 | 000000000 | 000000 |
| 5/8"-18 | 1 13/16" | 4 1/32" | 1 13/16" | 41/64" | 0.6406" | 4 | UNF | H3 | 000000000 | 000000 |
| 3/4"-10 | 2 7/32" | 4 11/16" | 2 7/32" | 25/32" | 0.7813" | 4 | UNC | H3 | 000000000 | 000000 |
| 3/4"-16 | 2" | 4 15/32" | 2" | 49/64" | 0.7656" | 4 | UNF | H3 | 000000000 | 000000 |
| 7/8"-9 | 2 1/2" | 5 1/16" | 2 1/2" | 29/32" | 0.9063" | 4 | UNC | H3 | 000000000 | 000000 |
| 7/8"-14 | 2 1/2" | 5 1/8" | 2 1/2" | 57/64" | 0.8906" | 4 | UNF | H3 | 000000000 | 000000 |
| 1"-8 | 2 9/16" | 5 3/4" | 2 9/16" | 1 1/32" | 1.0313" | 4 | UNC | H4 | 000000000 | 000000 |
| 1"-12 | 2 9/16" | 5 7/16" | 2 9/16" | 1 1/32" | 1.0313" | 4 | UNF | H4 | 000000000 | 000000 |
| 1"-14 | 2 9/16" | 5 7/16" | 2 9/16" | 1 1/32" | 1.0313" | 4 | UNF | H4 | 000000000 | 000000 |
| 1 1/8"-7 | 3" | 6 1/16" | 3" | 1 11/64" | 1.1719" | 4 | UNC | H4 | 000000000 | 000000 |
| 1 1/8"-12 | 2 9/16" | 5 3/4" | 2 9/16" | 1 5/32" | 1.1563" | 4 | UNF | H4 | 000000000 | 000000 |
| 1 1/4"-7 | 3" | 6 3/8" | 3" | 1 19/64" | 1.2969" | 4 | UNC | H4 | 000000000 | 000000 |
| 1 1/4"-8 | 3" | 6" | 3" | 1 1/4" | 1.25" | 4 | UN8 | H5 | 000000000 | 000000 |
| 1 1/4"-12 | 3" | 6 1/16" | 3" | 1 9/32" | 1.2813" | 4 | UNF | H4 | 000000000 | 000000 |
| 1 3/8"-6 | 3 3/16" | 6 11/16" | 3 3/16" | 1 27/64" | 1.4219" | 6 | UNC | H6 | 000000000 | 000000 |
| 1 3/8"-12 | 3" | 6 3/8" | 3" | 1 25/64" | 1.3906" | 6 | UNF | H4 | 000000000 | 000000 |
| 1 1/2"-6 | 3 3/16" | 7" | 3 3/16" | 1 35/64" | 1.5469" | 6 | UNC | H6 | 000000000 | 000000 |
| 1 1/2"-8 | 3" | 6 5/8" | 3" | 1 1/2" | 1.5" | 6 | UN8 | H5 | 000000000 | 000000 |
| 1 1/2"-12 | 3 3/16" | 6 11/16" | 3 3/16" | 1 17/32" | 1.5313" | 6 | UNF | H4 | 000000000 | 000000 |
| 1 3/4"-8 | 3 3/4" | 7 1/4" | 3 3/4" | 1 3/4" | 1.75" | 6 | UN8 | H5 | 000000000 | 000000 |
Left-Hand Inch
Drill Bit | Plug Chamfer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Insert Thread Size | Thread Lg. | Overall Lg. | Max. Tapping Dp. | Size | Decimal Size Equivalent | No. of Flutes | For Insert Thread Type | Pitch Dia. Limit | Each | |
Uncoated High-Speed Steel | ||||||||||
| 1/4"-20 | 1 1/8" | 2 23/32" | 1 1/8" | H | 0.266" | 4 | UNC | H2 | 000000000 | 000000 |
| 1/4"-28 | 1 1/8" | 2 23/32" | 1 1/8" | 6.7 mm | 0.2637" | 4 | UNF | H2 | 000000000 | 00000 |
| 5/16"-18 | 1 1/4" | 2 15/16" | 1 1/4" | Q | 0.332" | 4 | UNC | H3 | 000000000 | 00000 |
| 5/16"-24 | 1 1/4" | 2 15/16" | 1 1/4" | 21/64" | 0.3281" | 4 | UNF | H4 | 000000000 | 00000 |
| 3/8"-16 | 1 21/32" | 3 3/8" | 1 21/32" | X | 0.397" | 4 | UNC | H3 | 000000000 | 00000 |
| 3/8"-24 | 1 7/16" | 3 5/32" | 1 7/16" | 25/64" | 0.3906" | 4 | UNF | H3 | 000000000 | 00000 |
| 1/2"-13 | 1 13/16" | 3 13/16" | 1 13/16" | 17/32" | 0.5313" | 4 | UNC | H3 | 000000000 | 00000 |
| 1/2"-20 | 1 21/32" | 3 19/32" | 1 21/32" | 33/64" | 0.5156" | 4 | UNF | H5 | 000000000 | 00000 |
| 5/8"-11 | 1 13/16" | 4 1/4" | 1 13/16" | 21/32" | 0.6563" | 4 | UNC | H3 | 000000000 | 000000 |
| 5/8"-18 | 1 13/16" | 4 1/32" | 1 13/16" | 41/64" | 0.6406" | 4 | UNF | H3 | 000000000 | 000000 |
| 3/4"-10 | 2 7/32" | 4.667" | 2 7/32" | 25/32" | 0.7813" | 4 | UNC | H5 | 000000000 | 000000 |
Metric
For Insert | Drill Bit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Thread Lg. | Overall Lg. | Max. Tapping Dp. | Size | Decimal Size Equivalent | No. of Flutes | Pitch Dia. Limit | Each | |
Plug Chamfer | ||||||||||
Uncoated High-Speed Steel | ||||||||||
| M2 | 0.4 | 1/2" | 1 13/16" | 1/2" | 2.1 mm | 0.0827" | 3 | H2 | 000000000 | 0000000 |
| M2.2 | 0.45 | 9/16" | 1 7/8" | 9/16" | 2.35 mm | 0.0925" | 3 | H2 | 000000000 | 00000 |
| M2.5 | 0.45 | 5/8" | 1 15/16" | 5/8" | 37 ga. | 0.104" | 3 | H2 | 000000000 | 00000 |
| M3 | 0.5 | 11/16" | 2" | 11/16" | 3.2 mm | 0.1259" | 3 | H2 | 000000000 | 00000 |
| M3.5 | 0.6 | 3/4" | 2 1/8" | 3/4" | 3.7 mm | 0.1456" | 3 | H2 | 000000000 | 00000 |
| M4 | 0.7 | 7/8" | 2 3/8" | 7/8" | 19 ga. | 0.166" | 3 | H3 | 000000000 | 00000 |
| M5 | 0.8 | 1" | 2 1/2" | 1" | 5.3 mm | 0.2086" | 3 | H3 | 000000000 | 00000 |
| M6 | 1 | 1 1/8" | 2 23/32" | 1 1/8" | 6.3 mm | 0.248" | 4 | H3 | 000000000 | 00000 |
| M7 | 1 | 1 1/4" | 2 15/16" | 1 1/4" | 7.3 mm | 0.2874" | 4 | H3 | 000000000 | 00000 |
| M8 | 1 | 1 1/4" | 2 15/16" | 1 1/4" | 8.3 mm | 0.3267" | 4 | H3 | 000000000 | 00000 |
| M8 | 1.25 | 1 1/4" | 2 15/16" | 1 1/4" | 8.4 mm | 0.3307" | 4 | H3 | 000000000 | 00000 |
| M10 | 1 | 1 7/16" | 3 3/16" | 1 7/16" | 13/32" | 0.4063" | 4 | H3 | 000000000 | 00000 |
| M10 | 1.25 | 1 21/32" | 3 3/8" | 1 21/32" | 13/32" | 0.4063" | 4 | H3 | 000000000 | 00000 |
| M10 | 1.5 | 1 21/32" | 3 3/8" | 1 21/32" | 10.5 mm | 0.4134" | 4 | H4 | 000000000 | 00000 |
| M12 | 1.25 | 1 21/32" | 3 19/32" | 1 21/32" | 31/64" | 0.4844" | 4 | H4 | 000000000 | 00000 |
| M12 | 1.5 | 1 21/32" | 3 19/32" | 1 21/32" | 12.5 mm | 0.4921" | 4 | H4 | 000000000 | 00000 |
| M12 | 1.75 | 1 21/32" | 3 19/32" | 1 21/32" | 12.5 mm | 0.4921" | 4 | H4 | 000000000 | 00000 |
| M14 | 1.5 | 1 13/16" | 3 13/16" | 1 13/16" | 37/64" | 0.5781" | 4 | H4 | 000000000 | 00000 |
| M14 | 2 | 1 13/16" | 4 1/32" | 1 13/16" | 14.5 mm | 0.5709" | 4 | H5 | 000000000 | 000000 |
| M16 | 1.5 | 2" | 4 1/4" | 2" | 21/32" | 0.6563" | 4 | D6 | 000000000 | 000000 |
| M16 | 2 | 2" | 4 1/4" | 2" | 16.5 mm | 0.6496" | 4 | H5 | 000000000 | 000000 |
| M18 | 2.5 | 2 7/32" | 4 11/16" | 2 7/32" | 47/64" | 0.7344" | 4 | H5 | 000000000 | 000000 |
| M20 | 1.5 | 2 7/32" | 4 11/16" | 2 7/32" | 13/16" | 0.8125" | 4 | D6 | 000000000 | 000000 |
| M20 | 2.5 | 2 7/32" | 4 29/32" | 2 7/32" | 13/16" | 0.8125" | 4 | H5 | 000000000 | 000000 |
| M24 | 3 | 1 1/2" | 4" | 1 1/2" | 31/32" | 0.9688" | 4 | D8 | 000000000 | 000000 |
| M30 | 3.5 | 1 1/2" | 4" | 1 1/2" | 1 7/32" | 1.2188" | 4 | D9 | 000000000 | 000000 |
| M36 | 4 | 3 1/4" | 6 5/8" | 3 1/4" | 1 15/32" | 1.4688" | 6 | D9 | 000000000 | 000000 |
Bottoming Chamfer | ||||||||||
Uncoated High-Speed Steel | ||||||||||
| M2 | 0.4 | 1/2" | 1 13/16" | 1/2" | 2.1 mm | 0.0827" | 3 | H2 | 000000000 | 000000 |
| M2.2 | 0.45 | 9/16" | 1 7/8" | 9/16" | 2.3 mm | 0.0906" | 3 | H2 | 000000000 | 000000 |
| M2.5 | 0.45 | 5/8" | 1 15/16" | 5/8" | 37 ga. | 0.104" | 3 | H2 | 000000000 | 00000 |
| M3 | 0.5 | 11/16" | 2" | 11/16" | 3.2 mm | 0.1259" | 3 | H2 | 000000000 | 00000 |
| M3.5 | 0.6 | 3/4" | 2 1/8" | 3/4" | 3.7 mm | 0.1456" | 3 | H2 | 000000000 | 000000 |
| M4 | 0.7 | 7/8" | 2 3/8" | 7/8" | 19 ga. | 0.166" | 3 | H3 | 000000000 | 00000 |
| M5 | 0.8 | 1" | 2 1/2" | 1" | 5.3 mm | 0.2086" | 3 | H3 | 000000000 | 00000 |
| M6 | 1 | 1 1/8" | 2 23/32" | 1 1/8" | 6.3 mm | 0.248" | 4 | H3 | 000000000 | 00000 |
| M7 | 1 | 1 1/4" | 2 15/16" | 1 1/4" | 7.3 mm | 0.2874" | 4 | H3 | 000000000 | 00000 |
| M8 | 1 | 1 1/4" | 2 15/16" | 1 1/4" | 8.3 mm | 0.3267" | 4 | H3 | 000000000 | 00000 |
| M8 | 1.25 | 1 1/4" | 2 15/16" | 1 1/4" | 8.4 mm | 0.3307" | 4 | H3 | 000000000 | 00000 |
| M10 | 1 | 1 7/16" | 3 3/16" | 1 7/16" | 13/32" | 0.4063" | 4 | H3 | 000000000 | 00000 |
| M10 | 1.25 | 1 21/32" | 3 3/8" | 1 21/32" | 13/32" | 0.4063" | 4 | H3 | 000000000 | 000000 |
| M10 | 1.5 | 1 21/32" | 3 3/8" | 1 21/32" | 10.5 mm | 0.4134" | 4 | H4 | 000000000 | 00000 |
| M12 | 1.25 | 1 21/32" | 3 19/32" | 1 21/32" | 31/64" | 0.4844" | 4 | H4 | 000000000 | 000000 |
| M12 | 1.5 | 1 21/32" | 3 19/32" | 1 21/32" | 12.5 mm | 0.4921" | 4 | H4 | 000000000 | 00000 |
| M12 | 1.75 | 1 21/32" | 3 19/32" | 1 21/32" | 12.5 mm | 0.4921" | 4 | H4 | 000000000 | 00000 |
| M14 | 1.5 | 1 13/16" | 3 13/16" | 1 13/16" | 37/64" | 0.5781" | 4 | H4 | 000000000 | 000000 |
| M14 | 2 | 1 13/16" | 4 1/32" | 1 13/16" | 14.5 mm | 0.5709" | 4 | H5 | 000000000 | 000000 |
| M16 | 1.5 | 2" | 4 1/4" | 2" | 21/32" | 0.6563" | 4 | D6 | 000000000 | 00000 |
| M16 | 2 | 2" | 4 1/4" | 2" | 16.5 mm | 0.6496" | 4 | H5 | 000000000 | 000000 |
| M18 | 2.5 | 2 7/32" | 4 11/16" | 2 7/32" | 47/64" | 0.7344" | 4 | H5 | 000000000 | 000000 |
| M20 | 1.5 | 2 7/32" | 4 11/16" | 2 7/32" | 13/16" | 0.8125" | 4 | D6 | 000000000 | 000000 |
| M20 | 2.5 | 2 7/32" | 4 29/32" | 2 7/32" | 13/16" | 0.8125" | 4 | H5 | 000000000 | 000000 |
| M24 | 3 | 1 1/2" | 4" | 1 1/2" | 31/32" | 0.9688" | 4 | D8 | 000000000 | 000000 |
| M30 | 3.5 | 1 1/2" | 4" | 1 1/2" | 1 7/32" | 1.2188" | 4 | D9 | 000000000 | 000000 |
| M36 | 4 | 3 1/4" | 6 5/8" | 3 1/4" | 1 15/32" | 1.4688" | 6 | D9 | 000000000 | 000000 |
Pipe Threads
For Insert | Drill Bit | Plug Chamfer | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Threads per Inch | Thread Lg. | Overall Lg. | Max. Tapping Dp. | Size | Decimal Size Equivalent | No. of Flutes | For Insert Thread Type | Each | |
Uncoated High-Speed Steel | ||||||||||
| 1/8 | 27 | 1 1/16" | 2 7/16" | 1 1/16" | W | 0.386" | 4 | NPT | 000000000 | 000000 |
| 1/8 | 28 | 1 1/2" | 3 1/8" | 1 1/2" | 25/64" | 0.3906" | 4 | BSPP | 000000000 | 00000 |
| 1/4 | 18 | 1 1/16" | 2 9/16" | 1 1/16" | 33/64" | 0.5156" | 4 | NPT | 000000000 | 000000 |
| 1/4 | 19 | 1 5/8" | 3 1/2" | 1 5/8" | 17/32" | 0.5313" | 4 | BSPP | 000000000 | 00000 |
| 3/8 | 18 | 1 3/8" | 3 1/8" | 1 3/8" | 21/32" | 0.6563" | 4 | NPT | 000000000 | 000000 |
| 3/8 | 19 | 1 7/8" | 4" | 1 7/8" | 43/64'' | 0.6719" | 4 | BSPP | 000000000 | 00000 |
| 1/2 | 14 | 2 1/4" | 4 7/8" | 2 1/4" | 27/32" | 0.8738" | 4 | BSPP | 000000000 | 00000 |
| 1/2 | 14 | 1 3/8" | 3 1/4" | 1 3/8" | 13/16" | 0.8125" | 5 | NPT | 000000000 | 000000 |