Die Grinder Collet Grinding Machine Clamping Collet Size 3mm 3.18mm 6mm 6.35mm $ 6.19. ... 1/16"-1/4" 15Pcs ER11 Collets(1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 1/8",1/4") MODEL: ER11 Material: Steel.. SET OF BLACK DIAMOND DRILL GRINDER COLLETS NUMBERS LETTERS …Web