Micrometer Depth Gage with Half Base, Ratchet Thimble, 0-9" Range, .001"
2" (50mm) half base permits measuring depths of holes and slots close to shoulders and between obstructions
Combination ratchet and speeder for uniform pressure and quicker adjustment
Ring-type knurled lock nut for quick and sure locking
Rods have individual length adjustment and are 5/32" (4mm) in diameter
The depths of holes, slots, shoulders and projections can be measured with these fine tools