{"product_id":"pro-series-18-piece-high-accuracy-3-20mm-er-32-spring-collet-set-3901-5358","title":"PRO-SERIES 18 PIECE HIGH ACCURACY 3-20MM ER-32 SPRING COLLET SET (3901-5358)","description":"\u003cp\u003ePro-Series High Accuracy 18 Piece ER-32 3-20mm Spring Collet Set AA Grade. 5 Micron. Superior finish. Runout is less than or equal to .0002\". Made of high grade SUJ2 steel. Hardened and precision ground to 44-48HRC. Exceeds Federal Specifications. Major diameter is 1.300\". Overall length is 1.578\". Inside diameter is ground to reach mirror finish increasing grip force. Surface treated to reduce rust and improve hardness. Cryogenic treatment to significantly increase wear resistance. Collet must be assembled into collet chuck nut before inserting into the collet chuck. Shipping Weight: 6.1 lbs\u003c\/p\u003e","brand":"Pro-Series","offers":[{"title":"Default Title","offer_id":52485225840951,"sku":"3901-5358","price":534.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/0082\/6679\/files\/3901-5358_3901-5358-1_20170727_2.jpg?v=1781635404","url":"https:\/\/machinexsupplies.com\/products\/pro-series-18-piece-high-accuracy-3-20mm-er-32-spring-collet-set-3901-5358","provider":"MACHINEX Supplies","version":"1.0","type":"link"}