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                                                                This set includes 6 individual ER20 coolant sealing collets in English Sizes
 - 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. 
- These collets are true English collets. They are not relabeled Metric collets
- The following sizes are included,  3/16, 1/4, 5/16, 3/8, 7/16, 1/2
- Comes in a plastic collet box
- Box dimensions are 7.25"x5.5"x2" tall (with lid closed)