Bosch Wire Wheel Coarse 100mm SKU: 278323 MODEL: 2608622143 Error. try again later You've successfully joined the club $ 7 .98 each Available on orders $50 to $1500. More info × Mitre 10 MSAvailable at Mitre 10 MEGA and selected Mitre 10 stores. Variants For use with bench grinders. Features and benefits Diameter: 100mm. Coarse. 12.7mm (1/2 inch) bore.