Er11 Spring Collet Set, 15Pcs Chuck for Cnc Engraving Machine & Milling Lathe Tool Fine Workmanship, Good Elasticity, High Precision

【High quality 】 -- Made of high quality spring steel, they are stable in performance. Fine workmanship, good elasticity, high precision. 【Specifications 】 -- Range: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 1/8" ,1/4". Height: 18mm / 0.7", OD: 10mm / 0.39". Model: ER11 【Advantagesv -- There are total 15 collets of various sizes in on set which can basic meet your need. Each collet is well packed in separate protective container with label so you can easily distinguish them. 【Application 】 -- These spring collets are made of high quality 65Mn spring steel for CNC milling lathe tool and work-holding engraving machine. 【Notice 】 -- Collet must be placed into collet chuck nut before inserting into collet chuck.