Twist drills made of high-speed steel (4241) with hardness 62°HRc (+/-2°) and with point angle 118°,
straight cut without thinning, good for hand grinding. Diameter tolerance h8.
Spiral dextrorotatory drills, spiral type N, hot rolled forged, with a high flexibility and torsional strength,
with grinded drills margin.
Cylindrical shanks matching drills' diameter.
Suitable for general purposes, for alloy and carbon steels treatment with hardness up to 250Bhn,
for grey cast iron, non-ferrous metals as well as hardened plastics.
According to DIN-338.
straight cut without thinning, good for hand grinding. Diameter tolerance h8.
Spiral dextrorotatory drills, spiral type N, hot rolled forged, with a high flexibility and torsional strength,
with grinded drills margin.
Cylindrical shanks matching drills' diameter.
Suitable for general purposes, for alloy and carbon steels treatment with hardness up to 250Bhn,
for grey cast iron, non-ferrous metals as well as hardened plastics.
According to DIN-338.
50272
13pcs.
range of the set:
ø1.5-6.5mm
ø1.5-6.5mm
contents of the set:
1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8,
5.0, 5.5, 6.0, 6.5mm
1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8,
5.0, 5.5, 6.0, 6.5mm