The A Brand AT-1 threadmill is designed with a left-hand helix for a small pitch diameter difference between the hole entry and the bottom of the hole, allowing a delay in gauge-out failure. Longer tool life can be achieved with elimination of “zero cutting” for correcting bending.
List 16620 - A Brand AT-1 - Metric View Offering > View Overview >
List 16625 - A Brand AT-1 - Inch View Offering > View Overview >
List 16630 - A Brand AT-1 - NPT View Offering > View Overview >
List 16631 - A Brand AT-1 - NPTF View Offering > View Overview >
List 16625 - A Brand AT-1 - Inch View Offering > View Overview >
List 16620 - A Brand AT-1 - Metric View Offering > View Overview >
List 16631 - A Brand AT-1 - NPTF View Offering > View Overview >
List 16630 - A Brand AT-1 - NPT View Offering > View Overview >
ISO | Work Material | Recommended |
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P | Low Carbon Steel : 1010, 1018 |
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P | Medium Carbon Steel : 1035, 1045 |
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P | High Carbon Steel : 1065 |
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P | Alloy Steels : 4140, 4340 |
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P | Die Steels |
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M | Stainless Steels : 300 |
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M | Stainless Steels : 400 |
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M | Stainless Steels : 17-4PH |
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K | Cast Iron |
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N | Aluminum : 6061, 7075 |
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N | Aluminum : Casting |
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S | Nickel Alloy : Inconel |
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S | Titanium : 6AL4V (30HRC) |
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H | Hardened Steels : ~35 HRC |
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H | Hardened Steels : 35-45 HRC |
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H | Hardened Steels : 45-50 HRC |
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H | Hardened Steels : 50-70 HRC |
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good
best