Home - SMW Autoblok US SMW, Chucks, SMW Autoblok, Closed Center Chucks, Sliding Jaw Chucks, Pneumatic Chucks, Hydraulic Chucks, Specialty Chucks, Mandrels, Steady Rests The new CENTCO4 SMW-Autoblok chuck is the perfect clamping solution for a wide range of workpieces geometry. Completely new clamping functions like self centering, …