Mitutoyo Holemike Set - Complete Gages The performance of the well-established Mitutoyo Holtest series, well-known for their highly stable three-point self-centering action, has been enhanced by coating the contact surfaces with titanium nitride for longer life. Features include... Large LCD readout. Functions available: Presetting, Zero/ABS, power On/Off Data hold, Data out put, Error alarm, Battery replacement alarm. With Ratchet Stop for constant force. TiN-coated measuring contact points. Specifications include... 0.275" - 0.5" / 6.925-12.7mm Measuring Range 0.00005" / 0.001mm Resolution Set includes... Complete Gage with Display Unit for each size 0.275" - 0.35" Measuring Range 0.35" - 0.425" Measuring Range 0.425" - 0.5" Measuring Range 0.35" Setting Ring 0.425" Setting Ring Wooden Case