These heavy-duty, durable, commercial-grade band saw blades are for industrial woodworking, DIY and professional craftsmen. They are the premium band for woodworking. Tooth hardness is 62 to 63 RC, back hardness is 28 to 32 RC regular, skip and hook shape teeth raker set for left, right, straight (raker) pattern cuts, hard or softwood, plastic, mild steel and non-ferrous metal (for machines with speed reduction). For all vertical or stationary 2-wheel band saws.