Similar to DIN 6539 (extra short).
Nominal ? and shank ? equal.
Note:
Flute length LC = L2 + 1.5 × DC.
Non slip clamping in drill chuck No. 341050 with diamond coated jaws.
Through-coolant: no
Standard: DIN 6539
Tolerance nominal ?: h7
Number of cutting edges Z: 2
Tolerance nominal ?: h7
recommended maximum drilling depth L2: 2.3 mm
Overall length L: 20 mm
Shank ? Ds: 0.5 mm
Feed f in steel < 1100 N/mm2: 0.01 mm/rev.