Micrometer Vise Head Body Material Aluminum Jaw Face Type Smooth Jaw Material Nylon Jaw Face Width 1 in Jaw Opening - Maximum 1/2 in Rotation Angle 360 Degrees Throat Depth 15/16 in Base Swivel Angle 360 Degrees Compatible with Manufacturer Model Number 300 Features Delrin Pads Open 0.5 in (12.7mm) and Close to 0 in for Holding Thin Items Weight 0.23 lb (0.1Kg) Mounting Hole Diameter 5/8 in Number of Mounting Holes 1 Overall Depth 3 1/8 in Overall Length 3/4 in