supply of 1) digital three point internal micrometer, range 175-200 mm, accuracy: (+or-) 15 microns, resolution 0.001 mm, with or without pistol grip, extension rod: 150 mm, setting ring of 175 mm included. make: mitutoyo, precision, bakers, mahr only.2) digital three point internal micrometer, range 225-250 mm, accuracy: (+or-) 15 microns, resolution 0.001 mm, with or without pistol grip, extension rod: 150 mm, setting ring of 225 mm included. make: mitutoyo, precision, bakers, mahr only.3) digital three point internal micrometer, range 275-300 mm, accuracy: (+or-) 15 microns, resolution 0.001 mm, with or without pistol grip, extension rod: 150 mm, setting ring of 275 mm included. make: mitutoyo, precision, bakers, mahr only. , digital three point internal micrometer, range 175-200 mm, accuracy: (+or-) 15 microns, re solution 0.001 mm, with or without pistol grip, extension rod: 150 mm, setting ring of 175 mm included. m ake: mitutoyo, precision, bakers, mahr only [ warranty period: 12 months after the date of delivery ] ] , digital three point internal micrometer, range 225-250 mm, accuracy: (+or-) 15 microns, re solution 0.001 mm, with or without pistol grip, extension rod: 150 mm, setting ring of 225 mm included. m ake: mitutoyo, precision, bakers, mahr only [ warranty period: 12 months after the date of delivery ] ] , digital three point internal micrometer, range 275-300 mm, accuracy: (+or-) 15 microns, re solution 0.001 mm, with or without pistol grip, extension rod: 150 mm, setting ring of 275 mm included. m ake: mitutoyo, precision, bakers, mahr only [ warranty period: 12 months after the date of delivery ] ]