Safe Operation- The safety lock prevents accidental triggering, enhancing user safety during operation 4.5 CFM Air Needle Scaler – Airtek Needle Gun Electric Needle Scaler Electric For Rust Removal Needle Slag Compact Rust Remover 1) Used in industrial applications to remove rust and metal surfaces. (2) Ergonomic design. (3) Versatile, durable, and can be used for surface preparation Durable Construction- Crafted from carbon steel, it ensures high performance over extended periods Chicago Pneumatic, 1/8in. X12 Air Needle Scaler, Stroke 1.26in. / 32 mm, Max. BPM 4000 Air Consumption 4.2 cfm, Model# CP7115 Size- Air Pressure: 90 PSI;Needle Diameter: φ3mm;Needle Length: 180mm;Number of Needles: 12;Inlet Size: G1/4;Material: Carbon Steel;Recommended Hose Size: Inner diameter of at least φ8mm