![7/16" (0.437) ER-20 Coolant Collet - Steel Sealed Precision - Part # 20-0437-7/16CT - Top Tool & Supply](http://toptoolandsupply.com/cdn/shop/products/ercoolant_1f211f6d-95e3-4e0a-a1c5-0c4ae6bd6c83_1024x1024.png?v=1586393089)
7/16" (0.437) ER-20 Coolant Collet - Steel Sealed Precision - Part # 20-0437-7/16CT
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