Northern Tool offers the Kawasaki 4.5" Grinder, model no. 840776, for $19. Coupon code "248527" cuts it to $14. With free shipping, that's the lowest total price we could find by $13. It features a 4.3 amp motor, 11,500 rpm no-load speed, 2-position side handle, and spindle lock. Deal ends October 18.