ITEM NAME:2x Motor Shaft Coupler Sleeve With Good Abrasion Resistance, Long Service Life Description: Angle grinder accessories Great helper for your productivity Can be used for motor which shaft is 5/8/10/12mm Flexibility of coupling shaft removes stress between the motor and driving components This electric drill grinder connecting rod is suitable for cutting disc, saw , polishing which inner diameter Specification: Material: Tungsten Steel Size: 42 x 16mm / 1.65 x 0.63inch Tail Hole Diameter: 8mm / 0.31inch 10mm / 0.39inch Fit Saw : 10mm / 0.39inch Aperture Diameter Saw Package Includes: 2 Pieces Connector Note: The color may be different for different display, pls understand Pls allow 1-3mm error due to hand tste, thank you SKU: DMO0014460219460072.Flexibility of coupling shaft removes stress between the motor and driving components. Can be used for motor which shaft is 5/8/10/12mm. Angle grinder accessories. Material: Tungsten Steel. Great helper for your productivity.