Description
Version:
Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Convex cutting edges with honed edges and special flute profile for short chips, even on long chipping materials.
Note:
Flute length LC = L2 + 1.5 × DC.
NEW GENERATION AVAILABLE!
Recommended successor products are No.122470 and 122471.
Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122445/122505.
Form HE: order with No. 122440/122500 and 129100HE.
Standard: DIN 6537 K
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 17 mm
Overall length L: 55 mm
Shank ? Ds: 4 mm
Feed f in steel < 1100 N/mm2: 0.05 mm/rev.
Cutting chisel edge with high centring accuracy due to strong core and special point geometry. Convex cutting edges with honed edges and special flute profile for short chips, even on long chipping materials.
Note:
Flute length LC = L2 + 1.5 × DC.
NEW GENERATION AVAILABLE!
Recommended successor products are No.122470 and 122471.
Form HB and HE supplied at the same price as HA.
Form HB: order with No. 122445/122505.
Form HE: order with No. 122440/122500 and 129100HE.
Standard: DIN 6537 K
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 17 mm
Overall length L: 55 mm
Shank ? Ds: 4 mm
Feed f in steel < 1100 N/mm2: 0.05 mm/rev.
