Astro Pneumatic 4320 In-Line Needle Scaler 4200spm Includes Needles

Needles: 12pc. 3mm x 7"

Stroke Speed: 4200bpm
Net Weight: 2.5 lbs. (1.14kg)
Length: 12-1/4" (313mm)
Air Consumption: 0.12m??/min
Air InIet: 1/4"
Hose Size: 8mm
Sound Pressure: 91dBA
Vibration: 14.5m/S