Beta Hexagon Hand Sockets - 920A 22 Features and benefits • Hardened and tempered • All external surface : Bright chrome plated ( after vibrating )
Tickness of Ni-Cr coating : 10 ÷ 12 μm
Hardness of coating : ∼ 850HV
Adhesion of chrome plated as per UNI/ISO 2819 norms
Inside surfaces of the sockets : varnished , color silver • According to UNI-ISO 1711-1
Hexagon opening : in according to the ISO691/A norms