ER Collet Dividing Punch Former Datum precision:0.01mm Punch diameter:3-25mm Center height:80-81mm ER Collet Dividing Punch Former1.ER Collet Dividing Punch Former put ER32 main body and with collet inner size 6,8,10,12,16,20mm,total 6pcs,the weight is 11kgs. 2.The center of collet can move gently to help the concentricity more precision. 3.This punch former can divide into 24 degree angle,each ...