ARN12 | Teng Air Needle Scaler Features For cleaning and descaling work Straight design with lever arm throttle Insulated against cold air and vibration Supplied with needle equipment Use with 3mm diameter 126mm length needles Specifications Stroke Speed: 4000 bpm No. of Needles: 12 Piece Needle Stroke: 24mm Needle Diameter x Length: 3x126mm Sound Level: 88.7 dB(A) Vibration: 3.8 m/s Min. Hose Size: 3/8 inch Air Inlet: 1/4 inch Air Consumption at 100% int. (At 6.2 bar): 6 cfm Weight: 1.14kg