- Shank size: 1/4 inch
- Shank type: Hexagonal
- Overall length: 39 mm
Wiha 1/4" combi tap drill bits M3 to M10 and screw extractors
Wiha combi tap drill bits and screw extractors are used to cut a thread and to get a broken screw back out of the material, two jobs that often come up together in assembly and repair.
A combi tap drill bit drills the core hole and cuts the thread in one pass. Thanks to its 1/4" hexagon shank, it goes straight into a cordless screwdriver or bit holder. Choose the bit by the metric thread you need, from M3 to M10; the length grows with the size, from 36 to 65 mm. That way you tap sheet metal and profiles without a separate drill and tap.
You use a screw extractor when a screw or bolt has broken off or is stripped. First drill a hole in the centre, then turn the extractor in anticlockwise and the screw comes loose. The extractors run from 2.0 to 11.0 mm; choose the size by the diameter of the damaged screw. The drill bits for that pilot hole, and countersink bits for countersinking, are among the Wiha 1/4" drill bits and screw extractor drills, part of the Wiha cutting tools.
- Shank size: 1/4 inch
- Shank type: Hexagonal
- Overall length: 41 mm
- Shank size: 1/4 inch
- Shank type: Hexagonal
- Overall length: 65 mm
- Shank size: 1/4 inch
- Shank type: Hexagonal
- Overall length: 51 mm
- Shank size: 1/4 inch
- Shank type: Hexagonal
- Overall length: 44 mm
- Shank type: Hexagonal
- Overall length: 36 mm