High Precision Adjustable V-Blocks Use for inspection, production milling, work staging, spin grinding, or any operation requiring precision adjustable support. Features: Hardened and ground anvils support up to 1,000 lbs. Wide angle "V" accepts 3/16" to 5" diameters. Top flats ground parallel to base. Can hold wide, flat parts. Narrow flats may be held on a parallel across top. Vibration lock, (position lock), prevents creeping. Insures solid support without deflection. 1/2" total rise of "V", .050" per revolution. Dial graduated in increments of .001". Available in metric screw and dial.