ITEM NAME:13 Pieces 1-13Mm Er20 Collet Chucks Workpiece Clamping Milling Lathe Inch E W1C7 13 Pieces 1-13Mm Er20 Collet Chucks Workpiece Clamping Milling Lathe Inch E W1C7 Application: Milling Cutter Model Number: tool holder MODEL: ER20 collet 100% Brand New and High Quality. Type : CNC milling Lathe Tool Color:Silver Material: steel Size:1.2.3.4.5.6.7.8.9.10.11.12.13mm Precision ground and hand inspected. Only the very best materials and grinding techniques used! Package included 13 * Collet chuck