High concentricity. Core thickness and core taper are standard.
Special surface treatment.
Precision ground point. When drilling deep holes, evacuate chips from the hole frequently, and ensure adequate cooling.
Economy version with standard flutes.
With point geometry shape A.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
Note:
For suitable reducing adapters for tools with MT shanks see No. 343000-343530.
Through-coolant: no
Standard: DIN 1870 R2
Tolerance nominal ?: h8
Point angle: 118 degrees
Shank: Morse taper
Number of cutting edges Z: 2
recommended maximum drilling depth L2: 219.3 mm
Flute length Lc: 235 mm
Overall length L: 360 mm
Morse taper MT size: 1
Feed f in steel < 750 N/mm2: 0.1 mm/rev.