P
Steel
Alloy Steels : 4140; 4340
High Carbon Steel : 1065
Low Carbon Steel : 1010; 1018
Medium Carbon Steel : 1035; 1045
Good
Best
M
Stainless Steel
Stainless Steels : 300
Stainless Steels : 17-4PH
Stainless Steels : 400
Good
Best
K
Cast Iron
Cast Iron
Good
Best
N
Non-Ferrous
Aluminum : 6061; 7075
Aluminum : Casting
Good
Best
H
Hardened Steel
Hardened Steels : 35 HRC
Hardened Steels : 35-45 HRC
Good
Best
Description
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 & Benefits
P
Steel
Alloy Steels : 4140; 4340
High Carbon Steel : 1065
Low Carbon Steel : 1010; 1018
Medium Carbon Steel : 1035; 1045
Good
Best
M
Stainless Steel
Stainless Steels : 300
Stainless Steels : 17-4PH
Stainless Steels : 400
Good
Best
K
Cast Iron
Cast Iron
Good
Best
N
Non-Ferrous
Aluminum : 6061; 7075
Aluminum : Casting
Good
Best
H
Hardened Steel
Hardened Steels : 35 HRC
Hardened Steels : 35-45 HRC
Good
Best