ER, SC & SHRINK COLLETS USER GUIDE Correct Wrong Max Runout T.I.R. 0.003 4 7 Slim Design 4.5° Powerful Clamping Force Balancing Screw Rigidity & Stiffness by Taper + Face Contact High Power HSK Clamping Short Insertion Clearance Long Clamping Area 1 Do not use Weldon type shanks. 2 Insert shank at least Lmin into the chuck. 3 In order to maintain a firm grip, shank’s surface finish should have a roughness of at least N5. Preset Balancing Screws Screw Symmetrical Desing Made from Durable H13 Steel 689