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Collets, Precision AF C5 C16 DA R8 RD ER TG

An Extensive Selection of Collets and collet sets and Accessories. CDTooling offers exceptional Precision Quality at an Outstanding Value.
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  • ER8 ER11 ER16 ER 20 ER25 ER32 ER40 ER50 Collets ER8 ER11 ER16 ER 20 ER25 ER32 ER40 ER50 Collets
    An "ER" collet system is the most widely used clamping system in the world . The standard sizes are ER-8, ER-11,ER-12, ER-16, ER-20, ER-25, ER-32, ER-40, ER-50. The "ER" comes from an existent "E" collet ". The number is the cavity opening diameter in millimeters, the outside collet diameter. ER collets contract over a range of 1mm and are available in 1mm or 0.5mm steps, so a range of ER collets can hold any cylindrical shank, metric or imperial. ER collets may also be used on a lathe to hold work pieces
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