Description
Version:
With precision ground point.
Special 4-chamfer relief ground for very good guidance within the bore. Bright finish flutes, nitrided chamfers.
With point geometry shape C.
Advantage:
Special deep hole drills. For particularly deep or recessed holes. Good chip evacuation due to parabolic flutes, resulting in fewer chip evacuations even in particularly deep holes.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
Note:
Suitable NC spotting drills No. 112120, 112140 and 112170 with 142° tip angle for enhanced process reliability
Through-coolant: no
Standard: DIN 1869
Tolerance nominal ?: h8
Point angle: 130 degrees
Shank: Plain shank
Number of cutting edges Z: 2
recommended maximum drilling depth L2: 219.7 mm
Flute length Lc: 235 mm
Overall length L: 340 mm
Shank ? Ds: 10.2 mm
Feed f in steel < 750 N/mm2: 0.1 mm/rev.
With precision ground point.
Special 4-chamfer relief ground for very good guidance within the bore. Bright finish flutes, nitrided chamfers.
With point geometry shape C.
Advantage:
Special deep hole drills. For particularly deep or recessed holes. Good chip evacuation due to parabolic flutes, resulting in fewer chip evacuations even in particularly deep holes.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
Note:
Suitable NC spotting drills No. 112120, 112140 and 112170 with 142° tip angle for enhanced process reliability
Through-coolant: no
Standard: DIN 1869
Tolerance nominal ?: h8
Point angle: 130 degrees
Shank: Plain shank
Number of cutting edges Z: 2
recommended maximum drilling depth L2: 219.7 mm
Flute length Lc: 235 mm
Overall length L: 340 mm
Shank ? Ds: 10.2 mm
Feed f in steel < 750 N/mm2: 0.1 mm/rev.
