Swap out worn, bent, or broken needles in your STEELMAN air powered needle scaler with the STEELMAN N307 19-Piece 3mm x 180mm Replacement Scaler Needle Pack. Made from hardened alloy steel for long lasting durability and reliability, these replacement needles are ideal for use removing thick, heavy layered paint from metal surfaces as well as chipping away rust and mill scale. Needles measure 3mm x 180mm in size (1/8-inch x 7-3/32-inches) and are designed to be used in the STEELMAN 22110, 29121NS, and 29121NS-HD Pneumatic needle scalers.