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Drilling tools
Centre drills

Centre drill with radius HSS Type R DIN 333
For universal use up to 1000 N/mm 2
Metal cutting tools
Metal cutting tools
HA
HSS
Application: Advantage: ƒ Radius compensates for positioning inaccura-
For centre drilling on CNC machines. ƒ Profile-ground with highest requirements for cies and angle errors (sufficient bearing surface
process stability and concentricity
Execution: ƒ Less risk of centre drill breakage, since the radius present even with centring point offset)
ƒ Spiral-fluted design with grinding relief. Diameter does not leave behind sharp edges
0.5–0.8 ground on one side

Application Steel (N/mm ) 2 Stainless steel Alu Brass Bronze Plas- Graphite GG(G) Titan- Nickel- Super- Hard mat.
No. <700 <1000 <1300 marten. austen. short long short long short long tics G(C)FK GjMW alloy alloy alloy <55 HRC <65 HRC
11010 40 20 10 10 50 80 40 35 35 30 20 10 20
f steel 700 ˜ (mm/U) 11010...
ID no.
mm mm mm mm
0.5 3.15 2.3-2.6 mm 25 2 0.01 005 O. R.
0.8 3.15 2.6-2.9 mm 25 2.5 0.02 008 O. R.
1 3.15 3-3.3 mm 31.5 2.9 0.02 010 O. R.
1.25 3.15 3.3-3.6 mm 31.5 3.15 0.03 012 O. R.
1.6 4 4.2-4.7 mm 30.3 4 0.03 016 O. R.
2 5 5-5.4 mm 40 5 0.04 020 O. R.
2.5 6.3 6.3-6.8 mm 45 6.3 0.05 025 O. R.
3.15 8 8-8.5 mm 50 8 0.05 031 O. R.
4 10 10-10.6 mm 56 10 0.06 040 O. R.
5 12.5 12.5-13.1 mm 63 12.5 0.07 050 O. R.
6.3 16 16-16.6 mm 71 16 0.08 063 O. R.
Unit price, €
Prod. group 101
Centre drill with protective countersink HSS Type R
For universal use up to 1000 N/mm 2 DIN 333

Form HA
HSS B
Application: Advantage: ƒ Radial grinding relief to ensure optimum chip
For centre drilling on conventional and CNC ƒ Profile-ground with highest requirements for breaking
machines. process stability and concentricity
Execution: ƒ Protective countersink protects the centre drill
from damage
ƒ Spiral-fluted design with grinding relief
120°
60°

Application Steel (N/mm ) 2 Stainless steel Alu Brass Bronze Plas- Graphite GG(G) Titan- Nickel- Super- Hard mat.
No. <700 <1000 <1300 marten. austen. short long short long short long tics G(C)FK GjMW alloy alloy alloy <55 HRC <65 HRC
11012 40 20 10 10 50 80 40 35 35 30 20 10 20
f steel 700 ˜ (mm/U) 11012...
ID no.
mm mm mm mm
1.6 6.3 2-2.4 mm 45 0.03 016 O. R.
2 8 2.5-2.9 mm 50 0.04 020 O. R.
2.5 10 3.1-3.6 mm 56 0.05 025 O. R.
3.15 11.2 3.9-4.4 mm 60 0.05 031 O. R.
4 14 5-5.6 mm 67 0.06 040 O. R.
Unit price, €
Prod. group 101

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