Shaving brush

A shaving brush, comprising:

• a handle with an open upper end that includes an external thread;
• a bushing within the open upper end of the handle;
• a first collet having an upper end and a lower end, wherein the lower end is inserted into the bushing, and the upper end including a bore with a first inner diameter;
• and
• a collar adapted to engage the handle and retain the first collet between the handle and the collar, and to expose the bore of the first collet, wherein the collar includes an internal thread for engaging the external thread of the handle.

A method for switching between a first brush knot having a first diameter and a second brush knot having a second different diameter on a shaving brush, comprising:

• separating a collar from a brush handle to expose a first collet upon which the first brush knot is inserted;
• removing the first collet from an open upper end of the brush handle;
• inserting a second collet upon which the second brush knot is inserted into the open upper end of the brush handle;
• and
• re-engaging the collar to the brush handle to retain the second collet with the second brush knot.