- 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
- Plastic case
- Made in USA
Starrett R120 A-6 6"Dial Caliper
