11Operation with abrasive cut-off / diamondwheel (optional accessory)Fig.18The direction for mounting the lock nut and the innerflange varies by wheel thickness. Refer to the tablebelow.Abrasive cut-off wheel Diamond wheelThickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or more16 mm (5/8") 20 mm (13/16")22.23 mm (7/8")Abrasive cut-off wheel Diamond wheelThickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or moreThickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or more Thickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or more22.23 mm (7/8") 22.23 mm (7/8") 22.23 mm (7/8")16 mm (5/8") 20 mm (13/16")1231434.3.2.1.100 mm (4")115 mm (4 - 1/2") / 125 mm (5")123143Lock nut Abrasive cut-off wheel Inner flange Diamond wheel4.3.2.1. Lock nut Abrasive cut-off wheel Inner flange Diamond wheel010848WARNING:• When using an abrasive cut-off / diamond wheel,be sure to use only the special wheel guarddesigned for use with cut-off wheels. (In someEuropean countries, when using a diamond wheel,the ordinary guard can be used. Follow theregulations in your country.)• NEVER use cut-off wheel for side grinding.• Do not "jam" the wheel or apply excessivepressure. Do not attempt to make an excessivedepth of cut. Overstressing the wheel increasesthe loading and susceptibility to twisting or bindingof the wheel in the cut and the possibility ofkickback, wheel breakage and overheating of themotor may occur.• Do not start the cutting operation in the workpiece.Let the wheel reach full speed and carefully enterinto the cut moving the tool forward over theworkpiece surface. The wheel may bind, walk upor kickback if the power tool is started in theworkpiece.• During cutting operations, never change the angleof the wheel. Placing side pressure on the cut-offwheel (as in grinding) will cause the wheel to crackand break, causing serious personal injury.• A diamond wheel shall be operated perpendicularto the material being cut.