... 3.high accuracy 4.for machining,automotive,bearings,with touch... 5.3year warrant Roughness profilometerEquipment discription:This Roughness ... automotive, bearings, machine tools, with touch, precision hardware, optical processing industries Technical parameter:u Model: HZ-3503Au Test parameters: Ra ... error: 0.1% -1.0%u Scope of use: X: 100mm Z: 370mmuu Operating System: Win98/2000/XPu Power supply: ...