The RBD  40-Blade BBC-4SPN is constructed using 100% stainless steel, making it rust and corrosion resistant. The 40-bladed design effectively cuts weeds  at a fast speed without clogging or jamming, while the sharp blades reduce vibration levels for safe operation. The tines are welded to the shank for added durability, while the durable bolt holes are made with high precision to maximize strength. It also features a curved lip design at the end of each blade that prevents soil buildup for optimal performance.