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“Lewis” pattern with crest of thread, main cutting edge and taper tap, morse cone shank No. 2
1250 – 2500 rpm e.g. Ø 22 mm 1500 rpm in soft wood. Further details in the speed diagram
“Lewis” pattern, crest of thread, main cutting edge and taper tap in premium quality. Version with stepped head and hexagonal shank from Ø 8mm.
500 – 2800 rpm. e.g. Ø 12 mm 2000 rpm in soft wood. Further details in the speed diagram
Bormax® 2.0 prima with exchangeable pre-drill bit, centre drill bit or guiding pin. Much less feed force needed as well as minimized friction and therefore less heat generation. Reasons: The two main cutting edges are grooved shifted, as well as the toothed linear grooved pre-cutters. A matching centre drill bit and an allen wrench are included in the delivery. Hexagonal shank for a better power transfer
With brad point, two main cutting edges and protruding cutting edges. 1000 – 5000 rpm e.g. Ø 5 mm 5000 rpm in softwood. Further details in the speed diagram