S78XTFZ Bore Gage Set 78M, with Cases Inside Bore Gage Micrometer Set, 2-4", .00025"

S78XTFZ Bore Gage Set 78, 78M Micrometer Sets Extended Travel with CasesInside Bore Gage Micrometer Set, 2-4", .00025" The Starrett Series Depth Micrometer features a combination ratchet and speeder, ring-type locknut, ratchet stop and locknut. 0-12Ó Range, 6Ó Base, 12 Rods, Ratchet Stop, Lock Nut, Case. FEATURES The depths of holes, slots, shoulders and projections can be measured with these fine tools 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