Micrometers Precision digital external micrometer IP65 Design:- digital outside micrometer with protection class IP65 Delivered TÜV - with ratchet IP65 Digimatic USB U-WAVE® in case tested - resolution 0.001 mm - thimble and barrel scale matt chrome-plated - planarity 0.3 µm - measuring faces carbide-tipped, ground and fine lapped - frame varnished - measuring spindle with clamping feature,  6.35 mm - measuring force 5 - 10 N Functions: - ORIGIN (up to 100 mm) - Zero/ABS - Auto Power OFF - Hold - low voltage alert - 2× PRESET (> 100 mm)- key lock (> 100 mm) 310305 from 50 mm Delivery: Incl. setting standard (from 25 mm) and battery Note: Fitting connection cable for 310307 and 310309 see under 398005 on page 39/779. 310307 310305 up to 50 mm 31 310305 MITUTOYO 293, without data output 310307 MITUTOYO 293, with data output Measuring rangemm 310305 310307 Error limitmm 0-25   0.002 25-50   0.002 50-75   0.002 75-100   0.004 100-125 —  0.004 125-150 —  0.004 150-175 —  0.006 175-200 —  0.006 200-225 —  0.006 225-250 —  0.008 250-275 —  0.008 275-300 —  0.008 310309 MITUTOYO 293 set, with data output Measuring rangemm 310309 Contents External micrometer (310307) 0-50  0-25 | 25-50 mm 1 gauge block 25 mm made of ceramics External micrometer (310307) 0-75  0-25 | 25-50 | 50-75 mm Gauge blocks 25 | 50 mm Outside micrometer (310307) 0-100  0-25 | 25-50 | 50-75 | 75-100 mm Gauge blocks 25 | 50 | 75 mm 31/660 www.precitool.de