The blades of TapeTech's 10 in. Premium Blue Steel Taping Knife (TK10BSTT) is precision ground and polished, delivering just the right amount of flex for a smooth finish. Constructed from Carbon Steel and Blue Steel, they enhance tactile feedback during application. Furthermore, these knives feature the strongest backing plate in the industry, effectively minimizing unwanted blade deflection. This design element ensures consistent control and a refined finish, making these knives a valuable tool for any drywall finishing project.