RCBS Vernier Ball Micrometer 0-1"

RCBS Vernier Ball Micrometer for measuring case neck thicknesses. All metal body and thimble with matte finish
Range: 0-1-inch.
Accuracy within .0001-inch.
Ratchet stop on thimble assures uniform application of pressure.
Thimble lock keeps thimble from turning when measuring a constant.