Smith's Manual Pull Thru Fence Gate End Post CAC=35) Class A fire rating CAC=35) Class A fire rating Common size: 24 in x 24 in x 5 8 in Variable speed control for better control in both blower and vacuum mode Sharpens a wide variety of knives Exclusive angle adjust knob allows user to adjust the sharpening to original factory grind or to a preferred angle Offers 6 different sharpening angles Coarse and fine sharpening slots for standard edge knife blades Fixed angle sharpening for serrated edge knife blades Will quickly sharpen very dull or damaged knife blades and maintain the cutting edge of already sharp blades Quicker 75 Material Plastic