Knot size refers to the size of the base of the brush joint, which directly represents the size of a brush and the number of bristles. It is the core parameter of the brush. This can be found by measuring the size of the bristles and handle. With the exception of the famous Wee Scot, common brush diameters range from 21 to 30mm, with a few brush lengths up to 18mm or 32mm. 28, 30 are typical big brushes, while 21, 22 are typical small brushes.
Loft, "brush length," means the length of the bristles. There is no uniform standard. Some use the length from the bristle base to the tip of the bristle, some use the length of the bristle extending out of the handle, and some use the vertical distance from the bristle handle connection to the top of the bristle. General brand brush with the third kind of the majority, shaving brush repair and artisan system brush the first kind of more.
