How it works
The brush body holds the bristles that contact the component; oil supplied to the brush wets the bristles, which transfer it evenly to the tooth flanks or surface as the component moves past. Because the oil is applied by contact rather than sprayed, it reaches exactly the area that needs it and very little is wasted. The bristle material is chosen to suit the medium, the temperature and the surface — from Perlon for moderate temperatures to brass wire for hotter applications.
