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Conical and deburring countersink HSS-E CbN
For steel alloys up to 1200 N/mm², VA steels (A2 and A4)
� Chip flutes and cutting edges ground from the
fully hardened material using CbN process (cubic
crystalline boron nitride)
Optimum dimensional accuracy and sharpness,
vibration-free driling progress, high surface finish
� 90° countersink angle
� 3 cutter geometry with cylindrical shaft (DIN 335
form C)
� Axial relief ground cutting edge for jolt-free
operation
� Increased working life and cutting speed due to
use of bTI drill and cutting oil
Item Unit Designation mm Rated For counter dia. Total
number Pieces for VA steels dia. sinking shaft length
mm screws mm mm
003225 1 Conical and deburring countersink HSS-E CBN 6,3 6,3 M 3 5 45
003226 1 Conical and deburring countersink HSS-E CBN 8,3 8,3 M 4 6 50
003227 1 Conical and deburring countersink HSS-E CBN 10,4 10,4 M 5 6 50
003228 1 Conical and deburring countersink HSS-E CBN 12,4 12,4 M 6 8 56
0032289 1 Conical and deburring countersink HSS-E CBN 16,5 16,5 M 8 10 60
003230 1 Conical and deburring countersink HSS-E CBN 20,5 20,5 M10 10 63
003231 1 Conical and deburring countersink HSS-E CBN 25 25 M12 10 67
003232 1 Conical and deburring countersink HSS-E CBN 31 31 M16 12 71
003233 1 Conical and deburring countersink HSS-E CBN, case
Equipment: 1 each of the following sinkers: dia. 6.3; 8.3; 10.4; 12.4; 16.5; 20.5
04-642 A/P 04642
Transverse hole conical and deburring countersink
For chamfering and counter-sinking
� Creates a particularly good surface finish
� Suitable for almost all materials
� Chatterless
� Free of burrs
Item Unit Designation Countersunk head dia. Total
number Pieces range dia. Shaft length
mm mm mm mm
003234 1 Transverse hole conical and debur countersink HSS-E 2 – 5 10 6 45
003235 1 Transverse hole conical and debur countersink HSS-E 5 – 10 14 8 48
003236 1 Transverse hole conical and debur countersink HSS-E 10 – 15 21 10 65
003237 1 Transverse hole conical and debur countersink HSS-E 15 – 20 28 12 85
003239 1 Transverse hole conical and debur countersink HSS-E, set
Equipment: 1 each of the following sinkers: dia. 2 – 5; 5 – 10; 10 – 15; 15 – 20
04-643 A/P 04643
material non alloy non alloy alloy Cast Cast CuZn CuZn Aluminum Thermo Duro
Constr. steel Constr. steel Steel iron iron Alloy Alloy Alloy plast plast
up to above up to up to above rought toughened up to 11% Si
700 N/mm² 700 N/mm² 1000 N/mm² 250 N/mm² 250 N/mm²
Cutting 15 10 6 12 8 20 15 25 20 15
speed m/min m/min m/min m/min m/min m/min m/min m/min m/min m/min
Cooling lubricant bTI bTI bTI bTI bTI bTI bTI bTI Water pressure
material bS* bS* bS* bS* bS* bS* bS* bS* air
dia. mm n = n = n = n = n = n = n = n = n = n =
RPm RPm RPm RPm RPm RPm RPm RPm RPm RPm
6,3 758 505 303 606 404 1011 758 1263 1011 758
8,3 575 384 230 460 307 767 575 959 767 575
10,4 459 306 184 367 245 612 459 765 612 459
12,4 385 257 154 308 205 513 385 642 513 385
16,5 289 193 116 231 154 386 298 482 386 289
20,5 233 155 93 186 124 311 233 388 311 233
25,0 191 127 76 153 102 255 191 318 255 191
31,0 154 103 62 123 82 205 154 257 205 154
* BS = Drill and cutting oil
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