supply of surface roughness testersurface roughness tester,surface roughness tester of make/model: surftest sj-210, model-178-561-02(or) similar. tec hnicalspecification: range 360 micrometer (-200 micrometer to +160 micrometer), range/resolution: 360 micro meter/0.02 micrometer, 100 micro meter/0.006 micro meter. x-axis-16 mm, measuring speed 0.025 mm/s, 0.5mm/s, 0.75mm/s, returning speed-1mm/s, measuring force/ stylus tip shape-0.75mn/60, 2 micro meter parameters: ra, ry, rz, rq,rt, rmax, rmr (c), rsm, rv, rsk, rkv, rpm, tp auto sleep facility storage , built in memory up to 10 calibration, auto calibration with the entry of numerical value power supply, rec hargeable ni-mh battery, ac adopter charging time ofbuilt in battery- 4 hours, endurance about 1000 meas urements, weight 500 g, standard accessories: connecting cable, roughness specimen, carrying case, calib ration stage, protective sheet for display, operation manual, warranty card. the item should be compatible to measure surface roughness of round axles and wheel disc bore. make: mitutoyo (or) similar [ warranty period: 30 months after the date of delivery ] ]