Breakthrough Clean Phosphorus Bronze, Brkthru Bt-357/38/9pbbb Phosphorus Brz Bore Brsh

Breakthrough clean phosphorous bronze bristle bore brush is durable for effective cleaning without damaging your bore.The twisted brass core keeps brush rigid and has a deeper cleaning action than nylon brushes.Standard #8-32 thread (standard shotgun #5/16-27 thread on.410/28g/20g/12g) one per package.

Thread Pattern: #8-32
Bristle Type: Phosphor Bronze
Material: Brass