Description
Version:
Robust drill design and optimised special point geometry for the best possible chip formation and reliable chip breakage with higher feed rates at the same time. Advanced micro-geometry, convex cutting edge and conical profile grinding to provide additional stability for the main cutting edge. Optimised flute geometry and patented face geometry for reliable chip evacuation in steel materials and cast material. High-performance coating of the latest generation.
Note:
Flute length LC = L2 + 1.5 × DC.
For process reliability when using the 12×D drill, an initial centre drilling with No. 121068 ?" 121130 is recommended.
HB and HE shanks are available at the same price as HA.
For HB shanks: use order no. 123241.
For HE shanks: use order No. 123240 + 129100HE.
Standard: Works standard
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 105 mm
Overall length L: 162 mm
Shank ? Ds: 10 mm
Feed f in steel < 1100 N/mm2: 0.26 mm/rev.
Robust drill design and optimised special point geometry for the best possible chip formation and reliable chip breakage with higher feed rates at the same time. Advanced micro-geometry, convex cutting edge and conical profile grinding to provide additional stability for the main cutting edge. Optimised flute geometry and patented face geometry for reliable chip evacuation in steel materials and cast material. High-performance coating of the latest generation.
Note:
Flute length LC = L2 + 1.5 × DC.
For process reliability when using the 12×D drill, an initial centre drilling with No. 121068 ?" 121130 is recommended.
HB and HE shanks are available at the same price as HA.
For HB shanks: use order no. 123241.
For HE shanks: use order No. 123240 + 129100HE.
Standard: Works standard
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 105 mm
Overall length L: 162 mm
Shank ? Ds: 10 mm
Feed f in steel < 1100 N/mm2: 0.26 mm/rev.
