Wera Tools 05134940001 – 851/1 ADC Bit, Phillips, Aviation, Diamond, Profile Version, 1/4in, PH 1 x 25mm

High-quality bits for Phillips screws. The diamond coating of the bits ensures a secure fit in the screw, reduces the contact pressure required and lowers the risk of slipping. Profiled version with especially sharp edges which break away the paint when e.g. screw profiles are covered in it and this ensures a dependable transfer of power between the bit and screw. 1/4″ hexagon, suitable for holders as per DIN ISO 1173-D 6.3.

A stands for aviation. A bits are particularly hard bits with a sharp-edged profile which e.g. penetrates screw profiles full of paint (such as on fuselage panels) ensuring a dependable transfer of force between the bit and the screw.

One of the greatest problems with power tool applications is that the conventional bit easily slips out of the head of the screw (cam-out). This often destroys both the head of the screw and the tool. High resulting costs are incurred e.g. from damaged surfaces and screw connections that can no longer be loosened. Screwdriving will become safer and more economic if this problem of slipping can be minimized.

The minute diamond particles applied to the tip of the tool literally “bite” into the screw and ensure an exact, anti-slip fit in the head of the screw. This secure fit protects the screw. The cam-out forces which compel the user to apply greater pressure to the screw are considerably reduced.