Product details:
Depth gage, range 0 to 3 in./mm, resolutions 0. 001 In./mm, ratchet thimble, flat spindle, base length 2 1/2 in, movement of screw 1 in, number of measuring rods 3, rod dia. 1/8 In, rod type adjustable, solid, lock nut type ring, includes fitted case, spanner depth micrometers and gagesdepth micrometersvernierratchet thimble. Westward units have locking clamps. Starrett units include spanner. All include case.