Material:
Body and Blade Part: : C45
Carbide Tip: YG6X
Surface Treatment: Zinc Plated/Chrome Plated/blackened
3mm(1/8'')-7mm(9/32''): Hardened body part, hardness??30HRC

Detailed specifications are as follow:
Diameter Overall Length(mm) Code#
Mm inch
3 1/8" 55 XSJ04101
4 5/32" 55 XSJ04102
5 3/16" 55 XSJ04103
6 15/64" 65 XSJ04104
6.5 1/4" 65 XSJ04105
7 9/32" 65 XSJ04106
8 5/16" 75 XSJ04107
9 23/64" 75 XSJ04108
10 3/8" 75 XSJ04109
11 7/16" 80 XSJ04110
12 15/35" 80 XSJ04111
13 1/2" 80 XSJ04112