Moore & Wright 280-04DDL Digital Inside Caliper Micrometer 75-100mm/3-4" 

Features Standard: DIN 863 Digital functions: mm/inch conversion, on/off, zero-setting, battery low indication, hold, 0...ABS Measuring the inside of a bore or hole Satin chrome finished frame Constant force ratchet thimble Locking clamp for positive locking of spindle Supplied in case