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Wiha drill bits with 1/4" shank and screw extractor drill bits

Wiha drill bits with a 1/4" shank and screw extractor drill bits are made for finishing and repairing screw connections: countersinking so a screw head sits flush, and drilling out a broken or stripped screw.

The countersink bits have a 35 mm 1/4" hexagon shank, so they fit straight into a bit holder or cordless screwdriver without a chuck. They cut a conical countersink, so a countersunk screw ends up level with the surface. Choose the diameter to match the screw head: the series runs from 6.3 to 20.5 mm, the small sizes for thin screws and the larger ones for bolts and thick heads.

The screw extractor drill bits, from 2.3 to 9.0 mm, drill a hole in the centre of a damaged screw. You then turn a screw extractor into that hole to get the screw out. Pick the drill diameter that matches the extractor and the size of the seized screw. The extractors themselves and the combi tap bits are grouped under Wiha combi tap drill bits and screw extractors. Both groups belong to the Wiha cutting tools.

Category Wiha drill bit Wiha drill bit
Category Wiha countersink Wiha countersink
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