Part Number:Rosilesifz7g1b0ryo Product Dimensions:17 x 5 x 4 cm; 120 Grams Finish:Finish Material:Material Power Source:PowerSource Installation method:InstallationMethod Item Package Quantity:1 Spout height:1 Centimetres Included Components:Inc Item Weight:120 g These spring collets are made of high quality spring steel for CNC milling lathe tool and work-holding engraving machine. There are total 13 collets of various sizes in on set which can basic meet your need. Collet must be placed into collet chuck nut before inserting into collet chuck. Specifications: Material: Plastic alloy Model: ER11 Range: 1mm-7mm Package Weight: 118g/4.6oz Package List: 13 * Collets About this item Made from high quality 65Mn spring steel, they are stable in performance. Collet must be placed into collet chuck nut before inserting into collet chuck. Fine workmanship, good elasticity, high precision and run-out tolerance is low. Great collet for CNC milling lathe tool and work-holding engraving machine. Each collet is marked clearly so you can easily distinguish them. See more product details Made from high quality 65Mn spring steel, they are stable in performance. Collet must be placed into collet chuck nut before inserting into collet chuck. Fine workmanship, good elasticity, high precision and run-out tolerance is low. Great collet for CNC milling lathe tool and work-holding engraving machine. Each collet is marked clearly so you can easily distinguish them.