Description
Version:
Efficient drilling especially for use in stainless and acid-resistant steels.
Straight main cutting edges with optimised cutting edge design for improved chip breaking behaviour. Enlarged flutes for excellent chip evacuation. Increased wear resistance due to improved carbide substrate and high temperature resistant coating.
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. 122391.
For HE shanks: use order no. 122392.
Through-coolant: no
Standard: DIN 6537 K
Tolerance nominal ?: m7
Number of cutting edges Z: 2
Tolerance nominal ?: m7
recommended maximum drilling depth L2: 4.5 mm
Overall length L: 45 mm
Shank ? Ds: 4 mm
Feed f in stainless steel < 900 N/mm2: 0.02 mm/rev.
Efficient drilling especially for use in stainless and acid-resistant steels.
Straight main cutting edges with optimised cutting edge design for improved chip breaking behaviour. Enlarged flutes for excellent chip evacuation. Increased wear resistance due to improved carbide substrate and high temperature resistant coating.
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. 122391.
For HE shanks: use order no. 122392.
Through-coolant: no
Standard: DIN 6537 K
Tolerance nominal ?: m7
Number of cutting edges Z: 2
Tolerance nominal ?: m7
recommended maximum drilling depth L2: 4.5 mm
Overall length L: 45 mm
Shank ? Ds: 4 mm
Feed f in stainless steel < 900 N/mm2: 0.02 mm/rev.
