MK Motor for MK-270, MK-370, 470, 370EXP, 770, 770EXP Tile Saws, 120 V, 156428-R Powerful high-torque motor - 1-1/4 hp, 7.4 Amps, 6000 Rpm. Blade Capacity 7" (178mm), Arbor Size 5/8" (16mm). See product description for compatibilty. Heavy duty on/off switch. MK-Safeswitch prevents saw from being operated when locking key is removed.