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1/2 "DR Impact Extension Bar

Material Quality : SCM440(CR-MO), High Torque, Easily deformed, Impact-resistant,And less brittle fracture.This series of products is currently the best material.
Surface Treatment : Manganese phosphate , Rust better.
Propose : All products should fit with the size of torque tools , Increased product life ,Less prone to danger.

CD.NO. DR SIZE D1 Ø/mm D2 Ø/mm L/mm WEIGHT/g
GD4Y075 1/2 3" 25 16.5 75 143.1
GD4Y125 1/2 5" 25 16.5 125 225.2
GD4Y250 1/2 10" 25 16.5 250 430.7