840/4 Z bits, 3/16" x 50 mm

Tough viscous Wera bits for hexagon socket screws for universal use. 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. 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

• For socket head screws
• Ductile and tough for hard materials
• Hex-Plus allows socket head screws to live longer
• 1/4" hexagon drive (Wera connecting series 4)
• Suitable for AEG, ARO, Atlas-Copco, Biax, Black & Decker, Bosch, Buckeye Tools etc.