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ER-25 Collets

Accu-Collets ER COLLETS
AccuCollets™ Precision and UltraPrecision Collets DIN 6499-form B (ER) set new standards of accuracy.
Precision Collets concentricity is 15 microns or 0.0005" TIR or better
Ultra Precision Collets is 6 microns or 0.0002" TIR or better
  • Concentricity is 13 microns or 0.0005" TIR or better
  • Manufactured with Swiss technology
  • Crafted from high quality European alloy spring steel
  • TRUE INCH and metric sizes
  • Fractional Collets manufactured specifically for US market requirements. Use "on size" collets for best results
  • 16 slot construction for rigid clamping and extra concentricity
  • Accu-Collets improve tool life, part finish and reduces spindle wear
  • Can be used for drilling, milling, tapping and reaming
Precision ER Collets 0.0005" TIR or better as measured over the entire clamping range per DIN 6499 Standards
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ON SIZE Nominal Size Precision Ultra Precision
Frac MM Dec. Range Nominal Sizes Covered $9.75 Each $23.00 Each
1/16 - 0.062 0.062-0.042 1/16,3/64 25-0062-1/16
5/64 - 0.078 0.078-0.058 5/64,1/16 25-0078-5/64 25-0078-5/64UP
- 2.0 0.079 0.079-0.040 5/64,1/16 25-0079-2.0 25-0079-2.0UP
3/32 - 0.093 0.093-0.054 3/32, 5/64, 1/16 25-0093-3/32 25-0093-3/32UP
7/64 - 0.109 0.109-0.089 7/64, 3/32 25-0109-7/64 25-0109-7/64UP
- 3.0 0.118 0.118-0.079 7/64, 3/32 25-0118-3.0 25-0118-3.0UP
1/8 - 0.125 0.125-0.086 1/8, 7/64 25-0125-1/8 25-0125-1/8UP
9/64 - 0.140 0.140-0.120 9/64, 1/8 25-0140-9/64 25-0140-9/64UP
5/32 - 0.156 0.156-0.117 5/32, 9/64, 1/8 25-0156-5/32 25-0156-5/32UP
- 4.0 0.157 0.157-0.118 5/32, 9/64 25-0157-4.0 25-0157-4.0UP
11/64 0.171 0.171-0.151 11/64, 5/32 25-0171-11/64 25-0171-11/64UP
3/16 - 0.187 0.187-0.148 3/16, 11/64 25-0187-3/16 25-0187-3/16UP
- 5.0 0.196 0.196-0.157 3/16, 11/64 25-0196-5.0 25-0196-5.0UP
13/64 - 0.203 0.203-0.183 13/64, 3/16 25-0203-13/64 25-0203-13/64UP
7/32 - 0.218 0.218-0.179 7/32, 13/64 25-0218-7/32 25-0218-7/32UP
15/64 - 0.234 0.234-0.214 15/64, 7/32 25-0234-15/64 25-0234-15/64UP
- 6.0 0.236 0.236-0.197 15/64, 7/32 25-0236-6.0 25-0236-6.0UP
1/4 - 0.250 0.250-0.211 1/4, 15/64, 7/32 25-0250-1/4 25-0250-1/4UP
17/64 - 0.265 0.265-0.245 17/64, 1/4 25-0265-17/64 25-0265-17/64UP
- 7.0 0.275 0.275-0.236 17/64, 1/4 25-0275-7.0 25-0275-7.0UP
9/32 - 0.281 0.281-0.242 9/32, 17/64 25-0281-9/32 25-0281-9/32UP
19/64 - 0.296 0.296-0.257 19/64, 9/32 25-0296-19/64 25-0296-19/64UP
5/16 - 0.312 0.312-0.273 5/16, 19/64, 9/32 25-0312-5/16 25-0312-5/16UP
- 8.0 0.315 0.315-0.276 5/16, 19/64 25-0315-8.0 25-0315-8.0UP
21/64 - 0.328 0.328-0.289 21/64, 5/16, 19/64 25-0328-21/64 25-0328-21/64UP
11/32 - 0.343 0.343-0.304 11/32, 21/64 25-0343-11/32 25-0343-11/32UP
- 9.0 0.354 0.354-0.315 11/32, 21/64 25-0354-9.0 25-0354-9.0UP
23/64 - 0.359 0.359-0.320 23/64, 11/32 25-0359-23/64 25-0359-23/64UP
3/8 - 0.375 0.375-0.336 3/8, 23/64 25-0375-3/8 25-0375-3/8UP
25/64 - 0.390 0.390-0.351 25/64, 3/8, 23/64 25-0390-25/64 25-0390-25/64UP
- 10.0 0.393 0.393-0.354 25/64, 3/8 25-0393-10.0 25-0393-10.0UP
13/32 - 0.406 0.406-0.367 13/32, 25/64, 3/8 25-0406-13/32 25-0406-13/32UP
27/64 - 0.421 0.421-0.382 27/64, 13/32 25-0421-27/64 25-0421-27/64UP
- 11.0 0.433 0.433-0.394 27/64, 13/32 25-0433-11.0 25-0433-11.0UP
7/16 - 0.437 0.437-0.398 7/16, 27/64 25-0437-7/16 25-0437-7/16UP
29/64 - 0.453 0.453-0.414 29/64, 7/16 25-0453-29/64 25-0453-29/64UP
15/32 - 0.468 0.468-0.429 15/32, 29/64, 7/16 25-0468-15/32 25-0468-15/32UP
- 12.0 0.472 0.472-0.433 15/32, 29/64 25-0472-12.0 25-0472-12.0UP
31/64 - 0.484 0.484-0.445 31/64, 15/32 25-0484-31/64 25-0484-31/64UP
1/2 - 0.500 0.500-0.461 1/2, 31/64 25-0500-1/2 25-0500-1/2UP
- 13.0 0.511 0.511-0.472 1/2, 31/64 25-0511-13.0 25-0511-13.0UP
33/64 - 0.515 0.515-0.476 33/64, 1/2 25-0515-33/64 25-0515-33/64UP
17/32 - 0.531 0.531-0.492 17/32, 33/64 25-0531-17/32 25-0531-17/32UP
35/64 - 0.546 0.546-0.507 35/64, 17/32 25-0546-35/64 25-0546-35/64UP
- 14.0 0.551 0.551-0.512 35/64, 17/32 25-0551-14.0 25-0551-14.0UP
9/16 - 0.563 0.562-0.523 9/16, 35/64, 17/32 25-0562-9/16 25-0562-9/16UP
37/64 - 0.578 0.578-0.539 37/64, 9/16 25-0578-37/64 25-0578-37/64UP
- 15.0 0.591 0.590-0.551 37/64, 9/16 25-0590-15.0 25-0590-15.0UP
19/32 - 0.594 0.593-0.554 19/32, 37/64 25-0593-19/32 25-0593-19/32UP
39/64 - 0.609 0.609-0.570 39/64, 19/32 25-0609-39/64 25-0609-39/64UP
5/8 - 0.625 0.625-0.586 5/8, 39/64, 19/32 25-0625-05/8 25-0625-05/8UP
- 16.0 0.630 0.630-0.591 5/8, 39/64 25-0630-16.0 25-0630-16.0UP