Description
Version:
Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Convex major cutting edges with defined honed edge ensure the drill has high stability and maximum load capacity.
Special multi-nano layer coating for drilling in hardened steels.
Note:
Flute length LC = L2 + 1.5 × DC.
Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122642 / 122652.
Form HE: order with No. 122641 / 122651 + 129100HE.
When drilling in hardened steels from 56 HRC, only cool using air!
Standard: DIN 6537 L
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 46 mm
Overall length L: 103 mm
Shank ? Ds: 10 mm
Feed f in steel < 60 HRC: 0.12 mm/rev.
Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Convex major cutting edges with defined honed edge ensure the drill has high stability and maximum load capacity.
Special multi-nano layer coating for drilling in hardened steels.
Note:
Flute length LC = L2 + 1.5 × DC.
Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122642 / 122652.
Form HE: order with No. 122641 / 122651 + 129100HE.
When drilling in hardened steels from 56 HRC, only cool using air!
Standard: DIN 6537 L
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 46 mm
Overall length L: 103 mm
Shank ? Ds: 10 mm
Feed f in steel < 60 HRC: 0.12 mm/rev.
