OKMA PH2 double head screwdriver bits 1,S2 steel 2,sand blasting finished 3,hardness:58-60degree 4, best heat treatment

Item: PH2 double head screwdriver bits

Size: H1/4"*65mm*PH2*PH2

Surface processing:Sand blasting

Material : Industrial grade S2 tool steel

Features:

1.For use any magnetic bit holder.

2.Reinforced tip for longer life than standard bit.ribbed tip withstand up to 50% torque before

   amount .

3.Industrial grade S2 tool steel is tempered to extra hard for increased durability.

4.Heat trated to resist breakage and wear .Specially designed to reduce stripping .

5.There are screw thread ,it's more torsion .

PH2 double head screwdriver bit