Pneumatic Needle Scaler – Small Air Tool for Rust & Weld Slag Removal 
 Pneumatic Needle-Type Rust Removal Gun Specifications
1. RX-12CN
Steel needles: 12
Frequency: 4,200 bpm
Piston diameter: 22 mm
Length: 313 mm
Weight: 1.12 kg
2. BX-12CNA
Steel needles: 12
Frequency: 5,000 bpm
Piston stroke: 28 mm
Piston dimensions: 18 × 47 mm
Length: 295 mm
Weight: 1.3 kg
3. BX-12CNB
Steel needles: 12
Frequency: 4,000 bpm
Length: 308 mm
Weight: 1.08 kg
4. JT-20
Steel needles: 12
Frequency: 4,000 bpm
Piston diameter: 20 mm
Length: 343 mm
Weight: 2.32 kg
5. RX-25CNA
Steel needles: 19
Frequency: 3,000 bpm
Piston diameter: 22 mm
Length: 373 mm
Weight: 2.56 kg