Both the 12-247 and 12-220 have machined sides Cutter rests at a 21° angle, ideal for cross-grain planing Cutter is fully adjustable for depth of cut and alignment Gray, cast-iron base with precision-ground sides and bottom Durable epoxy coating provides long-lasting protection Finger-rest at front of plane adds comfort and control. 1-5/8" Cutter Width. (1) 12-508 Blade Included