Ultra-Precision ER collets are available in standard and sealed designs, individually or in sets. Thousands in stock for immediate shipping!
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ER20 collets from 1/8" - 1/2". Availible in EP, UP, PG, and SG grades. Made of SCM440 steel hardend to a HRC of 46.
Precision ER Collets. Click the category links below to view products. The standard ER collet is the most widely used clamping system in the world.