≥ ⌀ 6 mm with drive flat to DIN 1835-B.
Centred point grinding with thin chisel edge - gives easy spot drilling and high accuracy of the centre hole form. Very sturdy due to short flutes.
High-performance NC spotting drill.
Tool substrate made of sintered powder metallurgy for applications demanding high standards of tool life and accurate centring. Very good wear resistance in stainless steels.
Use speed for the actual hole ⌀
(not necessarily the speed for the drill outer ⌀).