Black Bull BG8SS 8-Inch Slow Speed Bench Grinder Sharpen blades, smooth edges and level surfaces Slow speed sharpens tools without generating edge- destroying heat 2 grinding wheels included (1 course/1 medium) 2 LED lights, one above each wheel 115 volt/60 Hz/1/2 HP, 1725 RPM single speed Bore size: 1/2 in. Wheel size: 8 in. x 1 in