{"product_id":"precision-ground-r8-shank-er40-collet-chuck-with-7","title":"Precision Ground R8 Shank ER40 Collet Chuck With 7\/16-20 Drawbar Offers Serious Stability Up To 8000 RPM And Tiny.0002 Inch TIR For Dope Finishing Passes On Manual Mills Without Breaking A Sweat","description":"\u003cdiv\u003e\n\u003cp\u003ePrecision R8 Er40 Chuck Provides Stability For Your Milling\u003cbr\u003e✔️ R8 Shank ER40 8000 RPM Max Drawbar Tool Steel Precision Ground Chuck\u003c\/p\u003e \u003cp\u003eThis single unit features a precision ground R8 shank suitable for manual mills. It securely holds ER40 clamps during high speed cutting jobs.\u003c\/p\u003e ✅ High speed capability hits 8000 RPM without shaking tools much\n✅ Runout stays tight at.0002 inch TIR for smooth cuts\n✅ Drawbar thread size matches standard mills at 7\/16-20\n✅ Construction uses hardened tool steel for wear resistance\n \u003cp\u003e💡 What determines the best collet chuck for precision milling?\u003cbr\u003eChoosing the right equipment impacts surface finish and tool longevity significantly.\u003cbr\u003e- Look for low tolerance values and rigid connections for accuracy\u003cbr\u003e- Verify RPM ratings match your spindle capacity requirements\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49191547338987,"sku":"VXB0H1LK8P9L","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61CzMPn-XlL.jpg?v=1786382410","url":"https:\/\/vxb.com\/products\/precision-ground-r8-shank-er40-collet-chuck-with-7","provider":"VXB Bearings","version":"1.0","type":"link"}