Replacement 3 mm needle set with holder for the Von Arx 34 B pneumatic needle scaler. The 34 B carries 28 needles of 3 mm and takes 125 L/min at up to 7 bar, so it needs more compressor than the 23 B. A 4 mm needle option also exists for the 34 B (part 700353), so the same tool can be stepped up for coarser work. Needle scalers strip rust, dirt and weld slag and follow uneven surfaces, including around projections. Von Arx 700352.