Description
Version:
HOLEX Pro Steel:
Straight major cutting edges and a special flute profile ensure good chip evacuation. The robust cutting edge geometry ensures high-performance drilling with good process reliability. A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and extremely wear-resistant coating.
Note:
Flute length LC = L2 + 1.5 × DC.
For process reliability when using the 12×D drill, an initial centre drilling with NC spotting drills No. 121068 - 121130 or HOLEX Pro Steel No. 122501 is necessary.
Machining strategy: HPC
Standard: Manufacturer's 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 < 900 N/mm2: 0.2 mm/rev.
HOLEX Pro Steel:
Straight major cutting edges and a special flute profile ensure good chip evacuation. The robust cutting edge geometry ensures high-performance drilling with good process reliability. A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and extremely wear-resistant coating.
Note:
Flute length LC = L2 + 1.5 × DC.
For process reliability when using the 12×D drill, an initial centre drilling with NC spotting drills No. 121068 - 121130 or HOLEX Pro Steel No. 122501 is necessary.
Machining strategy: HPC
Standard: Manufacturer's 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 < 900 N/mm2: 0.2 mm/rev.
