A quality tap and tapping drill bit set consisting of machine taps which can be used as a hand tap and in a milling/drilling machine with a tapping feature. The fluted design of the taps means the swarf is removed quickly from the thread and they can be used for both through and blind holes. Only one tap is needed for each thread and each tap is accompanied with the relevant tapping drill bit. The set includes M3, M4, M5, M6, M8, M10 and M12 taps and 2.5, 3.3, 4.2, 5, 6.8, 8.5 and 10.2mm drill bits. Tolerances to DIN338.
10 October 2018
Highly recommendedHave been using a set of these for a long time, drilling and tapping a wide range of materials from plastic through aluminium to tool steel. I've never had to sharpen a drill and regularly use power tapping on both the mill and the lathe. The taps are longer than many offered separately and the drills cut cleanly and efficiently in all materials with the appropriate lubrication. I have so far broken two of the taps through my own lack of care and only wish that they were available separately as individual taps on offer are either too long or too short.