A Brand AT-1 (16625)
Advanced Performance One Pass Thread Mill
Overview
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.
Features
Unequal Spacing / Variable Lead Flute
For reduced vibration
Right-Hand Cut & Left-Hand Helix Geometry
Increases tool stability
EgiAs Coating
For exceptional wear resistance
Ultra-Fine Grain Carbide
For high wear resistance and toughness
Lineup
Series
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 >
Alternate Products
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 >
Application Guide
| ISO | Work Material | Recommended |
|---|---|---|
| P | Low Carbon Steel : 1010, 1018 |
|
| P | Medium Carbon Steel : 1035, 1045 |
|
| P | High Carbon Steel : 1065 |
|
| P | Alloy Steels : 4140, 4340 |
|
| P | Die Steels |
|
| M | Stainless Steels : 300 |
|
| M | Stainless Steels : 400 |
|
| M | Stainless Steels : 17-4PH |
|
| K | Cast Iron |
|
| N | Aluminum : 6061, 7075 |
|
| N | Aluminum : Casting |
|
| S | Nickel Alloy : Inconel |
|
| S | Titanium : 6AL4V (30HRC) |
|
| H | Hardened Steels : ~35 HRC |
|
| H | Hardened Steels : 35-45 HRC |
|
| H | Hardened Steels : 45-50 HRC |
|
| H | Hardened Steels : 50-70 HRC |
|
good best
Contact Us 
Product Search 
