The High quality bits out of stainless steel for hexagon socket screws. Wera stainless are made out of stainless steel which prevents the formation of unsightly extraneous rust. The Hex-Plus profile offers a greater contact surface in the head of the screw. The notching effect is therefore reduced to a minimum and damage to the screw head more or less eliminated. " hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

For socket head screws
Stainless Steel Bits
Solution to the extraneous rust problem fasten stainless screws with stainless tools
Vacuum ice-hardened
Hex-Plus allows socket head screws to live longer

Hexagon socket screws Drive 1/4" hexagon, suitable for DIN ISO 1173-F 6.3 bit holders Design Stainless steel for minimising rust