Explore New Videos on Instagram #sharstoolco


More Information
Mfg SKU #202-5523
Collet CategoryER Collets
BrandShars Tool
collet seriesER20
collet size1/8
collet size range.0856-.1250
TIR (inch)0.0003



  • Made from alloy spring steel and hardened to HRC 44-48
  • Surface on the collet has been specially treated to extend the accuracy of the collet tooling life
  • All collets are checked its runout individually on 4 contact points by a high tolerance bench marked testing rod
  • On size 3.0mm and larger the runout is .0003"(0.008mm); under size 3.0mm the runout is .00059"(0.015mm)
  • This size of ER20 collet has collapsing range of .0394" (1 mm); the size of the collet is the largest size it can hold and able to hold anything smaller within the collapsing range
  • Conform to DIN6499B