Replacement 3 mm needle set with holder for the Von Arx 23 B and 23 BG pneumatic needle scalers. The 23 B runs 19 needles of 3 mm, weighs 2.2 kg and takes 100 L/min at up to 7 bar through a G 3/8 in thread. Needle scalers strip rust, dirt and weld slag, and the flexible needles follow uneven surfaces and work around projections. Von Arx 700300.