Bit-Check 7 Hex-Plus 1Product Description: Robust Bit Check by Wera. Bit Checks provide a quick overview of the tools available. Bits not needed are simply reinserted into the set and do not get lost. Simple transportation e. g. in the shirt pocket. 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. Tough viscous for universal use.