Texas Pneumatic Tools scaler needles are metal rods that repeatedly strike against surfaces to clean off buildup & coatings, as well as needle scalers rapidly. They remove paint, dirt, rust & welding slags from metal surfaces and are compatible with scalers to replace broken & worn out needles. These needles move independently to follow curves & contours and feature stainless steel or beryllium copper construction for high tensile strength. Choose from a wide range of these needles, available in lengths of 5 & 7 inches and selected models offer 19 units in a pack.