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Through holes

This category contains machine taps for cutting threads in through holes. The taps are made of high-quality high speed steel (HSS) with 5% cobalt. Adding cobalt achieves a very high hardness, so that steels which are difficult to machine can also be tapped.

The machine taps are made to DIN371B and DIN376B and are available in a range of metric sizes, from small to large. They are made by Labor and are intended for metalworking in the workshop, on a drilling or tapping machine. For holes that do not go all the way through, the same Machine taps section also offers taps for blind holes and fully ground taps for blind holes.