Starrett DIAL CALIPER, 0-12″, WITH STANDARD LETTER OF CERTIFICATION, WITHOUT CASE 120-12 W/SLC Precise dial graduations of 0.001″, with one revolution equivalent to 0.100″ Thumb-operated fine adjustment roll for one-handed use Lock screw holds the sliding jaw in position, to ensure a consistent measurement Rack teeth point down to keep foreign matter from clogging the gear Knife-edge contacts for inside and outside measurements     Â








