Search Results
Thread Type Thread Type |
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Thread Size Thread Size |
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Thread Direction Thread Direction |
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Overall Length Overall Length |
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Drill Bit Size Drill Bit Size |
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Drill Bit Decimal Size Equivalent Drill Bit DecimalSize Equivalent |
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Maximum Tapping Depth for Bronze Maximum TappingDepth for Bronze |
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Maximum Tapping Depth for Steel Maximum TappingDepth for Steel |
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Maximum Tapping Depth for Brass Maximum TappingDepth for Brass |
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Maximum Tapping Depth for Cast Iron Maximum TappingDepth for Cast Iron |
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Maximum Tapping Depth for Nickel Maximum TappingDepth for Nickel |
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Maximum Tapping Depth for Copper Maximum TappingDepth for Copper |
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Maximum Tapping Depth for Stainless Steel Maximum Tapping Depthfor Stainless Steel |
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Maximum Tapping Depth for Aluminum Maximum TappingDepth for Aluminum |
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Acme Thread Taps
Form general purpose Acme threads. These high-speed steel taps are for use on most metal and plastic. With a square shank, they're compatible with tap holders for drill presses and milling machines. Also known as tandem taps, these have an extended chamfer with two sets of chamfered cutting threads. Because these sets of threads have different shapes, reversing the tap for removal may cause damage to the workpiece and is not recommended. Use these taps with a rigid setup to tap through holes only.
Metric acme threads are also known as trapezoidal threads.
Acme
Thread | Drill Bit | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Pitch Dia. Limit | Each | |
Right Hand | ||||||||
Uncoated High-Speed Steel | ||||||||
| 1/4"-16 | 1 3/4" | 3" | 10 ga. | 0.1935" | 4 | 2G | 00000000 | 000000 |
| 3/8"-12 | 2 1/8" | 4 1/16" | 7.6 mm | 0.2992" | 4 | 2G | 00000000 | 00000 |
| 7/16"-12 | 2 9/16" | 5" | 23/64" | 0.3594" | 4 | 2G | 00000000 | 000000 |
| 1/2"-10 | 2 9/16" | 5" | 13/32" | 0.4063" | 4 | 2G | 00000000 | 00000 |
| 5/8"-8 | 3 3/16" | 6 1/4" | 13 mm | 0.5118" | 4 | 2G | 00000000 | 000000 |
| 5/8"-10 | 3 3/16" | 6 1/4" | 17/32" | 0.5313" | 4 | 2G | 00000000 | 000000 |
| 3/4"-5 | 4 5/16" | 7 15/16" | 14.5 mm | 0.5709" | 4 | 2G | 00000000 | 000000 |
| 3/4"-6 | 4 5/16" | 7 15/16" | 39/64" | 0.6094" | 4 | 2G | 00000000 | 000000 |
| 3/4"-8 | 4 5/16" | 7 15/16" | 41/64" | 0.6406" | 4 | 2G | 00000000 | 000000 |
| 3/4"-10 | 4 5/16" | 7 15/16" | 21/32" | 0.6563" | 4 | 2G | 00000000 | 000000 |
| 3/4"-16 | 4 5/16" | 7 15/16" | 11/16" | 0.6875" | 4 | 2G | 00000000 | 000000 |
| 7/8"-6 | 4 3/8" | 8 5/8" | 47/64" | 0.7344" | 4 | 2G | 00000000 | 000000 |
| 1"-4 | 5 1/4" | 10 1/8" | 49/64" | 0.7656" | 4 | 2G | 00000000 | 000000 |
| 1"-5 | 5 1/4" | 10 1/8" | 21 mm | 0.8268" | 4 | 2G | 00000000 | 000000 |
| 1"-6 | 5 1/4" | 10 1/8" | 53/64" | 0.833" | 4 | 2G | 00000000 | 000000 |
| 1"-8 | 5 1/4" | 10 1/8" | 7/8" | 0.875" | 4 | 2G | 00000000 | 000000 |
| 1"-10 | 5 1/4" | 10 1/8" | 29/32" | 0.9063" | 4 | 2G | 00000000 | 000000 |
| 1 1/8"-5 | 5 1/4" | 10 3/4" | 24 mm | 0.9449" | 4 | 2G | 00000000 | 000000 |
| 1 1/4"-4 | 5 1/4" | 11 1/8" | 1 1/64" | 1.0156" | 4 | 2G | 00000000 | 000000 |
| 1 1/4"-5 | 5 1/4" | 11 1/8" | 1 5/64" | 1.0781" | 4 | 2G | 00000000 | 000000 |
| 1 3/8"-4 | 5 7/8" | 12 1/4" | 1 9/64" | 1.1406" | 4 | 2G | 00000000 | 000000 |
| 1 1/2"-4 | 5 7/8" | 12 5/8" | 32 mm | 1.2598" | 4 | 2G | 00000000 | 000000 |
| 1 1/2"-5 | 5 7/8" | 12 5/8" | 1 19/64" | 1.3" | 4 | 2G | 00000000 | 000000 |
Left Hand | ||||||||
Uncoated High-Speed Steel | ||||||||
| 1/4"-16 | 1 3/4" | 3" | 10 ga. | 0.1935" | 4 | 2G | 00000000 | 00000 |
| 3/8"-12 | 2 1/8" | 4 1/16" | 7.6 mm | 0.2992" | 4 | 2G | 00000000 | 00000 |
| 7/16"-12 | 2 9/16" | 5" | 23/64" | 0.3594" | 4 | 2G | 00000000 | 000000 |
| 1/2"-10 | 2 9/16" | 5" | 13/32" | 0.4063" | 4 | 2G | 00000000 | 00000 |
| 5/8"-8 | 3 3/16" | 6 1/4" | 13 mm | 0.5118" | 4 | 2G | 00000000 | 000000 |
| 5/8"-10 | 3 3/16" | 6 1/4" | 17/32" | 0.5313" | 4 | 2G | 00000000 | 000000 |
| 3/4"-5 | 4 5/16" | 7 15/16" | 14.5 mm | 0.5709" | 4 | 2G | 00000000 | 000000 |
| 3/4"-6 | 4 5/16" | 7 15/16" | 39/64" | 0.6094" | 4 | 2G | 00000000 | 000000 |
| 3/4"-8 | 4 5/16" | 7 15/16" | 41/64" | 0.6406" | 4 | 2G | 00000000 | 000000 |
| 3/4"-10 | 4 5/16" | 7 15/16" | 21/32" | 0.6563" | 4 | 2G | 00000000 | 000000 |
| 3/4"-16 | 4 5/16" | 7 15/16" | 11/16" | 0.6875" | 4 | 2G | 00000000 | 000000 |
| 7/8"-6 | 4 3/8" | 8 5/8" | 47/64" | 0.7344" | 4 | 2G | 00000000 | 000000 |
| 1"-4 | 5 1/4" | 10 1/8" | 49/64" | 0.7656" | 4 | 2G | 00000000 | 000000 |
| 1"-5 | 5 1/4" | 10 1/8" | 21 mm | 0.8268" | 4 | 2G | 00000000 | 000000 |
| 1"-6 | 5 1/4" | 10 1/8" | 53/64" | 0.833" | 4 | 2G | 00000000 | 000000 |
| 1"-8 | 5 1/4" | 10 1/8" | 7/8" | 0.875" | 4 | 2G | 00000000 | 000000 |
| 1"-10 | 5 1/4" | 10 1/8" | 29/32" | 0.9063" | 4 | 2G | 00000000 | 000000 |
| 1 1/8"-5 | 5 1/4" | 10 3/4" | 24 mm | 0.9449" | 4 | 2G | 00000000 | 000000 |
| 1 1/4"-4 | 5 1/4" | 11 1/8" | 1 1/64" | 1.0156" | 4 | 2G | 00000000 | 000000 |
| 1 1/4"-5 | 5 1/4" | 11 1/8" | 1 5/64" | 1.0781" | 4 | 2G | 00000000 | 000000 |
| 1 3/8"-4 | 5 7/8" | 12 1/4" | 1 9/64" | 1.1406" | 4 | 2G | 00000000 | 000000 |
| 1 1/2"-4 | 5 7/8" | 12 5/8" | 32 mm | 1.2598" | 4 | 2G | 00000000 | 000000 |
| 1 1/2"-5 | 5 7/8" | 12 5/8" | 1 19/64" | 1.3" | 4 | 2G | 00000000 | 000000 |
Metric Acme
Thread | Drill Bit | Right Hand | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Lg. | Overall Lg. | Size | Decimal Size Equivalent | No. of Flutes | Pitch Dia. Limit | Each | |
Uncoated High-Speed Steel | |||||||||
| M10 | 2 | 2.56" | 5 1/8" | 8 mm | 0.315" | 3 | H7 | 0000000 | 0000000 |
| M12 | 3 | 2.56" | 5 1/8" | 9 mm | 0.3543" | 3 | H7 | 0000000 | 000000 |
| M14 | 3 | 3.15" | 6 5/16" | 11 mm | 0.4331" | 4 | H7 | 0000000 | 000000 |
| M16 | 4 | 3.15" | 6 5/16" | 12 mm | 0.4724" | 4 | H7 | 0000000 | 000000 |
| M18 | 4 | 4.33" | 7 7/8" | 14 mm | 0.5512" | 4 | H7 | 0000000 | 000000 |
| M20 | 4 | 4.33" | 8 3/4" | 16 mm | 0.6299" | 4 | H7 | 0000000 | 000000 |
| M22 | 5 | 4.33" | 8 3/4" | 17 mm | 0.6693" | 4 | H7 | 0000000 | 000000 |
| M24 | 5 | 5.31" | 10 1/4" | 19 mm | 0.748" | 4 | H7 | 0000000 | 000000 |
| M26 | 5 | 5.31" | 10 1/4" | 21 mm | 0.8268" | 4 | H7 | 0000000 | 000000 |