High-quality Wera bit for Phillips screws. Comes with a sharp-edged profile that breaks 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. The diamond coating ensures a secure fit of the bit in the screw, reduces the contact pressure required, and lowers the risk of slipping. Extra-hard design. 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

'A' stands for aviation. 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.

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.

Today, the Wera diamond bit - manufactured with the technology specifically developed by Wera for this application - still sets the standard in terms of resilience and functionality. Wera bits with a diamond coating ensure a secure fit of the bit in the screw head.

Ideal for sensitive materials