![5/16" (0.312) ER16 Super Precision Collet (0.0005" Accuracy or Better) - Part # 16-0312-5/16 - Top Tool & Supply](http://toptoolandsupply.com/cdn/shop/products/er_45fa0a8d-55a3-46fb-b0ca-1c699d9ce843_1024x1024.png?v=1586391331)
5/16" (0.312) ER16 Super Precision Collet (0.0005" Accuracy or Better) - Part # 16-0312-5/16
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