Dasqua 0-1" spline micrometer. resolution is 0.0001". Strictly made in accordance with DIN863. Spindle thread is hardened, ground and lapped for ultimate accuracy. Barrel and thimble have a satin chrome finish. Carbide measuring face. Clear micro fine graduations on satin chrome finish for easy reading. Quick and easy zero adjustment on sleeve. Positive lever locking clamp and ratchet stop for exact readings. The anvil & shaft have a small diameter for measuring splined shafts, slots, and keyways. Non-rotating spindle. Supplied in a fitted case.