Feature:1. Excellent Alloy Steel Material: This air powered weld slag remover is made of excellent alloy steel material, which is sturdy and reliable, not easy to be damaged, and has a long service life.2. Ergonomic Design: This pneumatic needle scaler features an ergonomic design that increases comfort, provides better control, and is lightweight and easy to maneuver, effective at removing slag after welding, and easy to reach surfaces in confined spaces.3. High Performance: This compact needle scaler has a compact size and superior performance, the air needle scaler is perfect for surface preparation, including removing rust, paint and weld slag from hard metal surfaces.4. 12 Steel Needles: This pneumatic rust paint weld removal tool with 12 steel needles easily removes stubborn rust, paint and weld slag with a no load speed of 4400rpm.5. Wide Application: This air powered needle scaler has a wide range of applications and can be used for automobiles, ships, trains, hulls, containers, steel structures, iron tools and so on.Specification:Item Type: Pneumatic Needle ScalerMaterial: Alloy SteelSpecification: Rust Removal Needle: Approx. 3.05mm x 180mm x 12 Needles or 0.12 x 7.09 x 12 NeedlesImpact Rate: 4200bpmPiston Diameter: Approx. 22mm or 0.87inStroke: Approx. 16mm or 0.63in.Package List:1 x Pneumatic Needle Scaler1 x Air Inlet Connector