Version :
3-flute drill, specially developed for use at very high feed rates. Extremely suitable for machines with high power output and stable machining conditions.Special point geometry with stable cutting edges and large clearance at the centre permits very high feed rates.The patented point geometry is optimised for chip flow and generates low cutting forces with good chip breakage.With 145° point angle for low burr formation when drilling through holes. The sector-leading technology of the chisel point guarantees optimum self-centring behaviour and permits spot drilling on irregular surfaces. 3 guide chamfers guarantee a stable exit from the hole and an exact roundness of the hole.

Note :
Flute length LC = L2 + 1.5 × DC. HB and HE shanks are available at the same price as HA.
For HB shanks: use order No. 122436.
For HE shanks: use order No. 122435 + 129100HE.