It is used to clean burrs and rust inside holes and pipes of various diameters and depths, to polish inner walls and to obtain the desired surface quality. These brushes are manufactured from a minimum diameter of 10 mm to 100 mm.
As brush material, it is manufactured from synthetic materials such as PPN, Ny 6, 6.6, 6.12, PVC, as well as corrugated or flat brass, steel and stainless wire, and also abrasive material containing sandpaper dust. It is delivered in various shapes with pins and plastic handles. It is also used in mass production by attaching to drills or hand braces.
