Internal thread is 7/16"-20. Made of hardened, high grade tool steel.
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Sundely ER11 ER16 ER20 Precision Spring Collet Set CNC Milling Lathe Tool UK. Select high-quality carbon steel. Hardened & precision ground. Big clamping force and wide clamping range, widely used in machining centers, general milling machines, CNC milling machine, engraving machine, high-speed machines, and other processing.
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ER25 Collets set (14pcs 3-16mm ) run out: 0.01mm. All critical surfaces are precision ground for accurate fit. All critical surfaces precision ground. Send Check to 192 technology dr. Site P Irvine CA92618.
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This 28 piece set of 5C Collets are PRO quality. They range in size from 1 to 28mm "and include several features, including internal and external threads, and a 3 year warranty. The clamping surface of the collet is hardened to 55-60 HRC and the spring part is hardened to 40-45 HRC.
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1 x MT3 Shank ER32 collet chuck. 1 x 18PC ER32 Collet Set. 1 x ER32 Spanner. ER32 Collet Set: 3-20mm. ER32 collet chuck Size: 50 x 140mm(D x H) Draw bar threads M12. ER32 Spanner Length: 205mm. Due to the different display and different light, the picture may not reflect the actual color of the item.
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Internal Threads - 6mm x 2, 10mm, 12mm and 16mm. Thickness - approx 10mm (0.4"). In very good condition - see photos. Threads in good order.
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Suitable for all kinds of milling machine spindle taper hole for the R8. Hardness :HRC 55-60. It used for clamping tools,change the taper hole of spindle,It is easy to use,to enlarge the use range of machine tool.
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Internal thread is 7/16"-20. Made of hardened, high grade tool steel.
eBay