● This is a precision instrument, handle with care.● Do not disassemble or modify.● Keep instrument away from water and oil.● Use only with supplied Extension Rods and Washers.● Keep instrument away from direct sunlight and hightemperatures such as in a car, or near a stove or heatsource.● After use, remove dust and cutting chips, and apply rustpreventative oil to Extension Rods and Washers. Whennot in use store in supplied storage case.● This product is for measuring inside diameter; use onlyas directed. Improper use may cause accident or injury.NOTICEASSEMBLY(1 piece / size)Extension Rods4 pieces11 pieces12 piecesSub Rod (piece)Extension RodSub RodonlyRod Adj. NutWashersModel No.:WCDI-50/WCDI-100/WCDI-160<combined>Rod Adj. NutSelect the combination of Sub Rod (WCDI-160 only) ExtensionRod and Washers for the dimension you want to measure.Remove the Rod Adj. Nut put on the desired Rod, Sub Rod, andWashers, and secure with the Rod Adj. Nut.Extension RodExt. RodExt. RodWasher WasherWasher Sub RodPlease select combination with fewest number of Washers.Ex.Set to measureEx. Set to measureEx.Set to measureAccessoriesBezelPART IDENTIFICATION器Extension RodShaftMeasurementHeadProbe TipThank you for purchasing the Dial Bore Gauge.Please read this manual thoroughly before use for proper operation.DIAL BORE GAUGE Instruction ManualSPECIFICATIONS *Including supplied Dial GaugeRev. Cntr.(1 rev. = 1mm)HandlePointerCapGaugeFaceClampScrewGaugeLength below HandleWasherSingle Stroke RangeDial GaugeMeasuring RangeGraduation*Adjacent Error*Repeat AccuracyWeightLoosen the Clamp Screw and insert the Dial Gaugeuntil the Pointer rotates 1/10 turn or more. Tighten theClamp Screw to secure.ClampScrewInsertrotationor more②*Wide Range Acc'y