![4mm (0.157) ER40 Super Precision Collet (0.0005" Accuracy or Better) - Part # 40-0157-4.0 - Exact Industrial Supply](http://exactindustrialsupply.com/cdn/shop/products/er_26c842b4-8cbd-4a4b-8b1a-8209eaf3a104_1024x1024.png?v=1586564830)
4mm (0.157) ER40 Super Precision Collet (0.0005" Accuracy or Better) - Part # 40-0157-4.0
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