DIGITAL OUTSIDE MICROMETER RANGE 0- 25 MM, LEAST, COUNT 0. 001, 1 MICRON, ACCURACY +/- 2UM, ONLY MATE, Q3, DIGITAL OUTSIDE MICROMETER RANGE 300- 325 MM, LEAST COUNT 0. 001, ACCURACY +/- 6 UM, ONLY, SET OF THREE- POINT INTERNAL MICROMETER, WITH DIGITAL READOUT FOR BORE MEASURING PURPOSE, OF THROUGH HO