Thread Size Thread Size |
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For Use On For Use On |
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Flute Type Flute Type |
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![]() | Straight |
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Drill Bit Material Drill Bit Material |
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Shape Shape |
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![]() | Hex |
Application Application |
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Drill Bit Finish Drill Bit Finish |
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Individual/Set Individual/Set |
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Container Type Container Type |
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Shank Type Shank Type | Show |
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![]() | Square |
Shank Type Shank Type | Hide |
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Round |
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Reduced Round |
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Hex |
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SDS Plus |
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Quick-Change Hex |
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Morse Taper |
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Square |
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SDS Max |
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3-Flat |
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Threaded |
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Spline |
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Threaded Hub |
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Knurled-End Hex |
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Tapered Square |
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Reversible Hex |
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Tapered Round |
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HIOS |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Material Material |
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Tap and Drill Bit Sets



Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.
Carbon steel taps are for thread repair and occasional tapping.
High-speed steel taps and drill bits have a longer tool life than carbon steel. Uncoated high-speed steel taps and drill bits are strong enough for most jobs but don’t last as long as other high-speed steel taps and drill bits. Use them for small-scale jobs. Titanium-nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long. Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and oxide-coated drill bits. Black-oxide coated and black-and-gold-oxide coated taps and drill bits cut with less friction than uncoated taps and drill bits.
Cobalt steel taps and drill bits have higher strength and wear resistance than carbon steel and high-speed steel taps and drill bits.
Taper-chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes.
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. However, they do not start threads as easily as taper chamfers. 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.
No. of Pieces | Chamfer Type | Tap Sizes Included | No. of Flutes | Drill Bit Sizes Included | Drill Bit Material | Container Type | Includes | Each | |
Uncoated Carbon Steel Taps | |||||||||
---|---|---|---|---|---|---|---|---|---|
13 | Plug | 1 each of sizes: 4-40 6-32 8-32 10-24 10-32 1/4"-20 | 3, 4 | 43 ga. 35 ga. 29 ga. 25 ga. 21 ga. 7 ga. | Black Oxide High-Speed Steel | Plastic Case | Tap Wrench | 0000000 | 000000 |
29 | Taper, Plug, Bottoming | 3 each of sizes: M3 × 0.50 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm 10.2 mm | Black Oxide High-Speed Steel | Metal Case | Tap Wrench | 0000000 | 000000 |
Uncoated High-Speed Steel Taps | |||||||||
10 | Plug | 1 each of sizes: 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | 4 | 27/64" 5/16" 7 ga. F U | Black Oxide High-Speed Steel | Plastic Pouch | __ | 00000000 | 00000 |
16 | Plug | 1 each of sizes: M3 × 0.50 mm M3.5 × 0.60 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.5 mm 2.9 mm 3.3 mm 4.2 mm 5.0 mm 6.75 mm 8.5 mm 10.25 mm | Black Oxide High-Speed Steel | Plastic Pouch | __ | 0000000 | 000000 |
18 | Plug | 1 each of sizes: 6-32 8-32 10-24 10-32 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | 3, 4 | 27/64" 5/16" 36 ga 29 ga. 25 ga. 21 ga. 7 ga. F U | Uncoated High-Speed Steel | Metal Case | __ | 0000000 | 000000 |
18 | Plug | 1 each of sizes: 6-40 8-36 10-24 10-32 1/4"-28 5/16"-24 3/8"-24 7/16"-20 1/2"-20 | 3, 4 | 25/64" 29/64" 33 ga. 29 ga. 25 ga. 21 ga. 3 ga. I Q | Uncoated High-Speed Steel | Metal Case | __ | 0000000 | 000000 |
18 | Plug | 1 each of sizes: M2.5 × 0.45 mm M3 × 0.50 mm M3.5 × 0.60 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.05 mm 2.5 mm 2.9 mm 3.3 mm 4.2 mm 5.0 mm 6.7 mm 8.5 mm 10.2 mm | Uncoated High-Speed Steel | Metal Case | __ | 00000000 | 000000 |
29 | Taper, Plug, Bottoming | 3 each of sizes: M3 × 0.50 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm 10.2 mm | Black Oxide High-Speed Steel | Metal Case | Tap Wrench | 0000000 | 000000 |
Uncoated Cobalt Steel Taps | |||||||||
18 | Plug | 1 each of sizes: 6-32 8-32 10-24 10-32 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | 2, 3 | 27/64" 5/16" 36 ga 29 ga. 25 ga. 21 ga. 7 ga. F U | Uncoated Cobalt Steel | Metal Case | __ | 0000000 | 000000 |
Black Oxide High-Speed Steel Taps | |||||||||
18 | Plug | 1 each of sizes: 6-32 8-32 10-24 10-32 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | 3, 4 | 27/64" 5/16" 36 ga 29 ga. 25 ga. 21 ga. 7 ga. F U | Black and Gold Oxide High-Speed Steel | Metal Case | __ | 00000000 | 000000 |
Titanium Nitride (TiN) Coated High-Speed Steel Taps | |||||||||
18 | Plug | 1 each of sizes: 6-32 8-32 10-24 10-32 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | 3, 4 | 27/64" 5/16" 36 ga 29 ga. 25 ga. 21 ga. 7 ga. F U | Titanium Nitride (TiN) Coated High-Speed Steel | Metal Case | __ | 00000000 | 000000 |
Chip-Clearing Tap and Drill Bit Sets for Through-Holes

Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes. Because they don't need to be reversed to prevent buildup, they produce threads more efficiently than standard taps and are suitable for production work. Taps have a square shank for compatibility with tap wrenches and tap holders for drill presses and milling machines. With a plug chamfer, they have 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping. All taps and drill bits are made of high-speed steel for use on most metal and plastic.
No. of Pieces | Chamfer Type | Tap Sizes Included | Thread Type | No. of Flutes | Pitch Dia. Limit | Drill Bit Sizes Included | Drill Bit Material | Container Type | Each | |
Uncoated High-Speed Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
18 | Plug | 6-32 8-32 10-24 10-32 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | UNC, UNF | 2, 3 | H3 | 27/64" 5/16" 36 ga. 29 ga. 25 ga. 21 ga. 7 ga. F U | Black Oxide High-Speed Steel | Metal Case | 00000000 | 0000000 |
Gold Oxide High-Speed Steel | ||||||||||
18 | Plug | 6-40 8-36 10-24 10-32 1/4"-28 5/16"-24 3/8"-24 7/16"-20 1/2"-20 | UNF | 2, 3 | H2, H3 | 29/64" 25/64" 33 ga. 29 ga. 25 ga. 21 ga. 3 ga. I Q | Gold Oxide High-Speed Steel | Metal Case | 00000000 | 000000 |
18 | Plug | M2.5 × 0.45 mm M3 × 0.5 mm M3.5 × 0.6 mm M4 × 0.7 mm M5 × 0.8 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.5 mm M12 × 1.75 mm | Metric | 2, 3 | D3, D4, D5, D6 | 2.05 mm 2.5 mm 2.9 mm 3.3 mm 4.2 mm 5 mm 6.7 mm 8.5 mm 10.2 mm | Gold Oxide High-Speed Steel | Metal Case | 00000000 | 000000 |
Tap, Die, and Drill Bit Sets

Cut and repair threads and drill holes in many different sizes. Tap and die wrenches are included. The dies are hex shaped for use with conventional wrenches. The taps are made of carbon steel and are recommended for thread repair and occasional tapping.
Taper-chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes
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. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
No. of Pieces | Tap Sizes Included | Die Sizes Included | Drill Bit Sizes Included | Container Type | Includes | Each | |
Carbon Steel | |||||||
---|---|---|---|---|---|---|---|
Right-Hand Thread | |||||||
117 | 4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/8"-28, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, and M12 × 1.75 mm | 4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/8"-28, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, and M12 × 1.75 mm | 5/64", 7/64", 5/32", 1/4", 19/64", 5/16", 21/64", 3/8", 25/64", 13/32", 27/64", 29/64", 43 ga., 39 ga., 36 ga., 30 ga., 29 ga., 25 ga., 21 ga., 20 ga., 16 ga., 9 ga., 7 ga., 3 ga., B, F, H, I, J, O, Q, R, S, U, and Z | Plastic Case | Die Wrench (2), Extractor (5), Tap Wrench (3), Thread Gauge (2) | 00000000 | 0000000 |
Combination Drill Bit/Taps


Drill holes and cut threads without switching tools. Made of high-speed steel, these taps are for use on most metal and plastic. The square shank is compatible with tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping.
Taps with spiral flutes keep chips clear by drawing them back toward the tap and out of the hole.
Uncoated taps are strong enough for most tapping jobs but have a shorter tool life. Titanium nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long.
For technical drawings and 3-D models, click on a part number.
Thread | Drill Bit | Plug Chamfer | ||||||||
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Size | Lg. | Overall Lg. | Size | Decimal Size Equivalent | Point Angle | Flute Type | Thread Type | Pitch Dia. Limit | Each | |
Uncoated High-Speed Steel | ||||||||||
4-40 | 3/8" | 1 7/8" | 43 ga. | 0.089" | 110° | Spiral | UNC | H2 | 0000000 | 000000 |
4-48 | 3/8" | 1 7/8" | 42 ga. | 0.0935" | 110° | Spiral | UNF | H2 | 0000000 | 00000 |
5-40 | 13/32" | 1 15/16" | 38 ga. | 0.1015" | 110° | Spiral | UNC | H2 | 0000000 | 00000 |
6-32 | 7/16" | 2" | 36 ga. | 0.1065" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
6-40 | 7/16" | 2" | 33 ga. | 0.113" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
8-32 | 1/2" | 2 1/8" | 29 ga. | 0.136" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
8-36 | 1/2" | 2 1/8" | 29 ga. | 0.136" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
10-24 | 5/8" | 2 3/8" | 25 ga. | 0.1495" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
10-32 | 5/8" | 2 3/8" | 21 ga. | 0.159" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
12-24 | 21/32" | 2 3/8" | 16 ga. | 0.177" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
12-28 | 21/32" | 2 3/8" | 15 ga. | 0.18" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
1/4"-20 | 25/32" | 2 1/2" | 7 ga. | 0.201" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
1/4"-28 | 25/32" | 2 1/2" | 3 ga. | 0.213" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
5/16"-18 | 15/16" | 2 27/32" | F | 0.257" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
5/16"-24 | 15/16" | 2 27/32" | I | 0.272" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
3/8"-16 | 1 1/16" | 3 3/8" | 5/16" | 0.3125" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
3/8"-24 | 1 1/16" | 3 3/8" | Q | 0.332" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
7/16"-14 | 1 1/4" | 3 3/4" | U | 0.368" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
7/16"-20 | 1 1/4" | 3 3/4" | 25/64" | 0.3906" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
1/2"-13 | 1 3/8" | 4 1/16" | 27/64" | 0.4219" | 110° | Spiral | UNC | H3 | 0000000 | 00000 |
1/2"-20 | 1 3/8" | 4 1/16" | 29/64" | 0.4531" | 110° | Spiral | UNF | H3 | 0000000 | 00000 |
5/8"-11 | 1 3/4" | 5 1/16" | 17/32" | 0.5313" | 110° | Straight | UNC | H3 | 0000000 | 000000 |
3/4"-10 | 2" | 6" | 21/32" | 0.6563" | 110° | Straight | UNC | H3 | 0000000 | 000000 |
Titanium Nitride (TiN) Coated High-Speed Steel | ||||||||||
4-40 | 3/8" | 1 7/8" | 43 ga. | 0.089" | 118° | Straight | UNC | H2 | 0000000 | 00000 |
6-32 | 7/16" | 2" | 36 ga. | 0.1065" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
8-32 | 1/2" | 2 1/8" | 29 ga. | 0.136" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
10-24 | 5/8" | 2 3/8" | 25 ga. | 0.1495" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
10-32 | 5/8" | 2 3/8" | 21 ga. | 0.159" | 118° | Straight | UNF | H3 | 0000000 | 00000 |
1/4"-20 | 25/32" | 2 1/2" | 7 ga. | 0.201" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
1/4"-28 | 25/32" | 2 1/2" | 3 ga. | 0.213" | 118° | Straight | UNF | H3 | 0000000 | 00000 |
5/16"-18 | 15/16" | 2 23/32" | F | 0.257" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
3/8"-16 | 1 1/8" | 2 15/16" | 5/16" | 0.3125" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
1/2"-13 | 1 3/8" | 4 1/16" | 27/64" | 0.4219" | 118° | Straight | UNC | H3 | 0000000 | 00000 |
Thread | Drill Bit | Plug Chamfer | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Lg. | Overall Lg. | Size | Decimal Size Equivalent | Point Angle | Flute Type | Pitch Dia. Limit | Each | |
Uncoated High-Speed Steel | ||||||||||
M3 | 0.5 | 13/32" | 1 15/16" | 2.5 mm | 0.0984" | 110° | Spiral | D3 | 0000000 | 000000 |
M4 | 0.7 | 1/2" | 2 1/8" | 3.3 mm | 0.1299" | 110° | Spiral | D4 | 0000000 | 00000 |
M5 | 0.8 | 5/8" | 2 3/8" | 4.2 mm | 0.1653" | 110° | Spiral | D4 | 0000000 | 00000 |
M6 | 1 | 25/32" | 2 1/2" | 5 mm | 0.1968" | 110° | Spiral | D5 | 0000000 | 00000 |
M8 | 1.25 | 15/16" | 2 27/32" | 6.7 mm | 0.2637" | 110° | Spiral | D5 | 0000000 | 00000 |
M10 | 1.5 | 1 1/16" | 3 3/8" | 8.5 mm | 0.3346" | 110° | Spiral | D6 | 0000000 | 00000 |
M12 | 1.75 | 1 3/8" | 4 1/16" | 10.2 mm | 0.4015" | 110° | Spiral | D6 | 0000000 | 00000 |
Titanium Nitride (TiN) Coated High-Speed Steel | ||||||||||
M3 | 0.5 | 13/32" | 1 15/16" | 2.5 mm | 0.0984" | 118° | Straight | D3 | 0000000 | 00000 |
M4 | 0.7 | 1/2" | 2 1/8" | 3.3 mm | 0.1299" | 118° | Straight | D4 | 0000000 | 00000 |
M5 | 0.8 | 5/8" | 2 3/8" | 4.2 mm | 0.1653" | 118° | Straight | D4 | 0000000 | 00000 |
M6 | 1 | 25/32" | 2 1/2" | 5 mm | 0.1968" | 118° | Straight | D5 | 0000000 | 00000 |
M8 | 1.25 | 15/16" | 2 23/32" | 6.7 mm | 0.2637" | 118° | Straight | D6 | 0000000 | 00000 |
Combination Drill Bit/Pipe and Conduit Thread Taps

Drill and thread holes for pipe and conduit without switching tools. Made of uncoated high-speed steel, these tools are for use on most metal and plastic. Their right-hand spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. With a square shank, they're compatible with tap wrenches and tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping of through holes.
Drill Bit | Plug Chamfer | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Type | Threads Per Inch | Thread Lg. | Overall Lg. | Size | Decimal Size Equivalent | Point Angle | No. of Flutes | Each | |
Uncoated High-Speed Steel | ||||||||||
1/8 | NPTF | 27 | 3/4" | 2 7/8" | Q | 0.332" | 118° | 4 | 0000000 | 0000000 |
1/4 | NPTF | 18 | 1 1/16" | 3 5/16" | 7/16" | 0.4375" | 118° | 4 | 0000000 | 000000 |
3/8 | NPTF | 18 | 1 1/16" | 3 1/2" | 9/16" | 0.5625" | 118° | 4 | 0000000 | 000000 |
1/2 | NPTF | 14 | 1 3/8" | 4 3/8" | 45/64" | 0.7031" | 118° | 4 | 0000000 | 000000 |
3/4 | NPTF | 14 | 1 3/8" | 4 9/16" | 29/32" | 0.9063" | 118° | 6 | 0000000 | 000000 |
1 | NPTF | 11 1/2 | 1 3/4" | 5 3/8" | 1 9/64" | 1.1406" | 118° | 6 | 0000000 | 000000 |