ER-32 Collet Chuck, 4" Diameter - Allows 25/32" Stock Through The Headstock of The Lathe, Concentricity .0016", LittleMachineShop.com (4231): Amazon.com: Tools & Home Improvement
Amazon.com: SILIVN 26PCS Spring Collet Set ER32 for CNC Engraving Machine & Milling Lathe Tool Workholding Engraving Collets (ER32) : Everything Else
MARS-TECH ER 32 COLLET DIN6499B AA 0.010 MICRON High Quality Precision Collet. (20mm) : Amazon.in: Industrial & Scientific
MT3 Shank With 11PC ER32 Collet Set ER32 Chuck & Spanner For Milling Machine - - Amazon.com