... &steel material 2.Used for boring,milling,drilling,etc 3.Clamping ability,high precision product details: COLLET ROUND(Unit ... levelA level1.0~1.50.00360.0050.0081.5~3.0103.0~6.0166.0~10.025 10.0 ... ——0.02 Hexagonal&SquareHSDSP standard sizeOrifice beatingLAA levelA levelBelow 3.00.01100.020.033.0~6.0166.0~10 ... terms : air courier, DHL, Fedex, UPS, TNT, EMS... 4 jaw chucks,hot! high precision, 1 4 hex chuck