CS Unitec's Trelawny VL303 Needle TVS ATEX Kit operates at 3000 blows per minute with low air consumption - requires 5. 5 CFM at 90 PSI. Its performance as a corrosion inhibitor has been proven in the harshest environments on ships and rigs throughout the world. The rubber trip and pistol handle provides comfortable operation. The VL303 needle gun Certified for use in Gas Zone 1 and Dust Zone 21, VL-Ex Needle and Chisel Scalers provide the safest option for surface preparation work without the need for additional hot work permits or costly containment measures.Additionally, unique vibration reduction technology reduces vibration levels by more than 8 times when compared to conventional needle scalers. Optional dust containment and drop protection provide operators with the safest option for working in hazardous environments where explosion, hazardous materials and access risks are all a serious consideration. Includes 28 long-lasting chisel-tip needles, 3mm dia. each and vacuum take-off shroud.Converts from a needle scaler to a chisel scaler in seconds with an optional kit.