ER Collets

( ER Spannzange, ER Pince De Serrage, ER Pinza Di Serraggio, ER Pinza Portapiezas )

We offer wide variety of ER collets in Inch and Metric sizes with various series like ER8, ER11, ER16, ER20, ER25, ER32, ER40 & ER50. We also offer Super Polished collets in Class-2 and class-2 accuracy. Our collets are as per DIN Standard 6499 and ISO Standard 15488.


  • ACCU-FIX Precision Collets are as per DIN 6499-form-B standard and ISO 15488.
  • HIGH-Precision Collets accuracy is as per calss - 1 Din 6499 & ISO 15488 standard
  • Manufactured with SWISS Technology
  • Crafted from high quality European sping steel
  • METRIC & INCH sizes
  • Fractional Collets manufactured specifically for USA market requirements
  • 16 slot construction for rigid clamping and extra concentricity
  • Can be used for drilling, milling, tapping and reaming
  • Hardness: 44-46 HRC
  • Tolerances of taper: AT3
  • Ultra Precision Collets are also available

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Collets Series A B
ER 8 8.5mm (.335 in) 13.5mm (.531 in)
ER 11 11.5mm (.453 in) 18mm (.709 in)
ER 16 17mm (.669 in) 27mm (1.063 in)
ER 20 21mm (.827 in) 31mm (1.220 in)
ER 25 26mm (1.024 in) 35mm (1.378 in)
ER 32 33mm (1.299 in) 40mm (1.575 in)
ER 40 41mm (1.614 in) 46mm (1.811 in)

To see complete Specification DownloadPDF


ER Collets Diagram

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We believe our workforce is our greatest asset. We put emphasis on training and skill upgradation of our employees and they play a greater role in the success of the company

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