Description
Version:
Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Straight major cutting edges with slightly honed edges and special flute profile produce short chips.
Note:
Flute length LC = L2 + 1.5 × DC.
Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122385.
Form HE: order with No. 122380 + 12900HE.
Standard: DIN 6537 K
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 5.5 mm
Overall length L: 45 mm
Shank ? Ds: 4 mm
Feed f in stainless steel < 900 N/mm2: 0.05 mm/rev.
Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Straight major cutting edges with slightly honed edges and special flute profile produce short chips.
Note:
Flute length LC = L2 + 1.5 × DC.
Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122385.
Form HE: order with No. 122380 + 12900HE.
Standard: DIN 6537 K
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 5.5 mm
Overall length L: 45 mm
Shank ? Ds: 4 mm
Feed f in stainless steel < 900 N/mm2: 0.05 mm/rev.
