Micrometer Depth Gage, Ratchet Thimble, 0-150mm Range, 0.01mm
100mm (4") base and 4mm (5/32") diameter measuring rods
Combination ratchet and speeder for uniform pressure and quicker adjustment
Ring-type knurled lock nut for quick and sure locking
Satin chrome reading surface is glare free and resists rust
The depths of holes, slots, shoulders and projections can be measured with these fine tools