Master Painter Best. 4. Flexible Taping Knife. Specially Designed With Ergonomically Engineered Handles To Decrease Hand Fatigue. Extra Sturdy. High Carbon Steel Blades Resist Rust & Extend Through Handles For Maximum Strength & Durability. Durable Brass Plated. Solid Steel. Nail Setting Head Can Be Used For Setting Nails & Other Hammering Jobs.