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Drilling tools \ Centre drill, type R
HSS centre drill with radius type R ( DIN 333 )
for universal use up to 1000 N/mm 2

HA
HSS
Application: Advantage:
For centre drilling on CNC machines.  less risk of centre drill breakage, since the radius does not leave behind sharp
edges
Execution:  radius compensates for positioning inaccuracies and angle errors (suffi cient
 spiral-fl uted design with relief grinding. diameter 0.5–0.8, ground on one side bearing surface present even with off set lathe centre)
Delivery:
Packaging unit: ref. no. 005 - 025 = 10 pieces (price per piece)

2
Application Steel (N/mm ) 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...
Ident. No.
mm mm mm mm
0.5 3.15 2.3-2.6 mm 25 2 0.01 005
0.8 3.15 2.6-2.9 mm 25 2.5 0.02 008
1 3.15 3-3.3 mm 31.5 2.9 0.02 010
1.25 3.15 3.3-3.6 mm 31.5 3.15 0.03 012
1.6 4 4.2-4.7 mm 30.3 4 0.03 016
2 5 5-5.4 mm 40 5 0.04 020
2.5 6.3 6.3-6.8 mm 45 6.3 0.05 025
3.15 8 8-8.5 mm 50 8 0.05 031
4 10 10-10.6 mm 56 10 0.06 040
5 12.5 12.5-13.1 mm 63 12.5 0.07 050
6.3 16 16-16.6 mm 71 16 0.08 063
8 20 20-20.7 mm 80 20 0.08 080
10 25 25-25.7 mm 100 25 0.08 100
12.5 31.5 31.5-32.3 mm 125 31.5 0.08 125
Prod. Gr. 1AD
HSSE centre drill with radius form R with surface ( DIN 333 )
for universal use up to 1300 N/mm 2

HA
HSSE
Application: Advantage:
For centre drilling on conventional and CNC  radius compensates for positioning inaccuracies
machines. and angle errors (suffi cient bearing surface present
even with off set lathe centre)
Execution:  radial relief ensures optimum chip breaking
 spiral-fl uted design with relief grinding  Face ensures good accessibility

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
11010160-630 40 20 20 15 10 50 80 40 30 35 40 20 10 20 5 5 5
11010...
Ident. No.
mm mm mm mm
1.6 4 4.2-4.7 mm 35 4 160
2 5 5-5.4 mm 40 5 200
2.5 6.3 6.3-6.8 mm 45 6.3 250
3.15 8 8-8.5 mm 50 8 315
4 10 10-10.6 mm 55 10 400
5 12.5 12.5-13.1 mm 63 12.5 500
6.3 16 16-16.6 mm 71 16 630
Prod. Gr. 1AD

Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com
Availability subject to country specific rules and regulations. 47

0055_EN_2018_KERN[21841740]-m.indd 56 12/17/2018 3:30:59 PM