Description
Version:
Special surface treatment, resulting in reduced tendency to edge build-up and improved chip evacuation.
Top quality high performance twist drills.
Cutting edge section ? 26.5 mm ? ground from solid, > 26.5 mm ? milled. This ensures high concentricity and pitch accuracy, and precision ground point up to 40 mm ?.
With shape A point.
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 345
Tolerance nominal ?: h8
Point angle: 118 degrees
Shank: Morse taper
Number of cutting edges Z: 2
recommended maximum drilling depth L2: 72 mm
Flute length Lc: 87 mm
Overall length L: 168 mm
Morse taper MT size: 1
Feed f in steel < 750 N/mm2: 0.1 mm/rev.
Special surface treatment, resulting in reduced tendency to edge build-up and improved chip evacuation.
Top quality high performance twist drills.
Cutting edge section ? 26.5 mm ? ground from solid, > 26.5 mm ? milled. This ensures high concentricity and pitch accuracy, and precision ground point up to 40 mm ?.
With shape A point.
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 345
Tolerance nominal ?: h8
Point angle: 118 degrees
Shank: Morse taper
Number of cutting edges Z: 2
recommended maximum drilling depth L2: 72 mm
Flute length Lc: 87 mm
Overall length L: 168 mm
Morse taper MT size: 1
Feed f in steel < 750 N/mm2: 0.1 mm/rev.
