High Quality: These rotary cutter blades are made of high-quality steel for the durability you need to get back to work.
Dimensions: This rotary blade is 3-1/2 in. x 20-1/2 in. x 1/2 in. with a 1-1/2 in. bolt hole. The width at edge, the widest point, is 4 in.
MODELS: GM66, SW66, GB48, GB144, RS213 (TIRE DRIVE) CCW ROTATION
Compatible OEM# 15074 and others
Material Tempered Steel
Dimensions 3-1/2 in. x 20-1/2 in. x 1/2 in. with a 1-1/2 in. bolt hole.
Heat Treat RC 38-42
Ductility Test ASAE-S483
Origin Made in USA