ER40 ER32 ER11 1/2"/1/4"/1/8" Precision Spring Collet Set HRC 56~60

It is ER40 precision spring collet. ER40 Specifications ER32 Specifications 001 ER32 1/4" 1.57" 1.3"(32mm). 002 ER32 1/8" 1.57" 1.3"(32mm). 003 ER32 1/2" 1.57" 1.3"(32mm). ER11 Specifications.

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