One counter reads in the plus direction and another in the minus directiion, so incremental measurement can be made in either direction
Carbide tipped scriber
Made of stainless steel (except the base).
With driving wheel. With dial test indicator holder.
Supplied with dust cover
Optional accessory: clamp for protracotors (code 2372-CLAMP)

Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 93906 3" Dia. Continuous Rim Diamond Mounted Cut-Off Wheel
Dynabrade 95848 Dynabrade Gear Oil
3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182 
