Version:
Forged from high quality steel, internally bevelled for easy fitting to bolt heads. Square drive socket with bore to DIN 3120-D 6.3.
Optimum grain orientation due to special forging process. Close tolerance width across flats. No rounding of bolt corners, nuts and bolt heads are protected. Hardened in an oil bath, stress-relieved and distortion-free for a precision fit. Rounded surface with AS drive profile.
Material:
HPQ high performance steel, non-flaking chrome-plated over nickel.