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Tool clamp \ Collet chuck type ER
Collet chucks type ER DIN 6499/ISO 15488-B ( ISO 15488 )
for milling chucks no. 23300, 23304, 23305

Application: Advantage:
For clamping tools with straight shanks.  Large and eff ective clamping lengths as well
Execution: as high clamping forces are achieved thanks to
double slots
 Fully hardened and polished  Flexing movements of the milling cutters are ruled
 Double-conical, slotted on both sides, with out
extracting groove
 Suitable for all standard collet chucks of type ER
Ident. No. 202–266

Collet type ER 20 (428 E) ER 25 (430 E) ER 32 (470 E) ER 40 (472 E)
Min./max. clamping range 1-13 mm 1-16 mm 3-20 mm 3-26 mm
D (mm) 21 26 33 41
L (mm) 31.5 34 40 46
Coolant supply No No No No
Clamping bypass (mm) -1.0 -1.0 -1.0 -1.0
d (mm) 23320... 23320... 23320... 23320...
Ident. No. Ident. No. Ident. No. Ident. No.
2 202 252 - - - -
3 203 253 303 - -
4 204 254 304 404
5 205 255 305 405
6 206 256 306 406
7 207 257 307 407
8 208 258 308 408
9 209 259 309 409
10 210 260 310 410
11 211 261 311 411
12 212 262 312 412
13 213 263 313 413
14 - - 264 314 414
15 - - 265 315 415
16 - - 266 316 416
17 - - - - 317 417
18 - - - - 318 418
19 - - - - 319 419
20 - - - - 320 420
21 - - - - - - 421
22 - - - - - - 422
23 - - - - - - 423
24 - - - - - - 424
25 - - - - - - 425
26 - - - - - - 426
Prod. Gr. 295

Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com 773
Availability subject to country specific rules and regulations. 352

0768_EN_2018_KERN[21849947]-q.indd 773 12/17/2018 3:34:13 PM