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- Total runout less than .0003 on these precise ER20 collets
- Made from Alloy spring steel and fully hardened
- All critical collet surfaces are precision ground for accurate fit
- Works in all ER20 Collet Chucks
- This ER20 collet has a full .015 range of collapse while maintaining full accuracy
- This ER20 collet has a range of .0469-.0319 inches
- MariTool Part# is .0469-ER20-3/64
