Roll forged, standard helix angle, core thickness and core taper.
Dimensions to DIN 338.
No interruption in the material structure, so the drill is more resilient and suitable for arduous drilling tasks (e. g. with hand held drills). Economy version.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
Through-coolant: no
Tolerance nominal ?: h8
Point angle: 118 degrees
Shank: Plain shank
Number of cutting edges Z: 2
recommended maximum drilling depth L2: 10.5 mm
Flute length Lc: 12 mm
Overall length L: 34 mm
Shank ? Ds: 1 mm
Feed f in steel < 750 N/mm2: 0.03 mm/rev.