Grindometer No. 5251

Path size: 0.5 x 5 in
Number of trajectories: 2
Scales:0 - 25 Microns / 0 - 1 Mils / 8 - 6 Hegman
Dimensions (approx.): 0.5 x 2.5 x 6.75 in
Net weight: 4.0 lbs (1.8 kg)

Includes:
Metal plate with scale
Scratcher
Case