>The RG-022 cutter was a part of a system called Pyrotechnical Complex “Vozgonka” (вoзгoнкa – sublimation). Its purpose was to silently cut metal rods. It is capable to cut rods of up to 20mm (.787) diameter. This tool was to be used in special operations to silently enter fenced areas.

https://thefirearmblog.com/blog/2018/01/17/three-special-firearms-designed-pyotr-serdyukov-father-vss-vintorez-val