The solid brass flash arrestor with internal filter screen protects the diver and torch without restricting oxygen flow. The large collet nut is knurled to assure the diver of a solid grasp. ACME threads prevent binding from mud or other debris, insuring quick, reliable rod insertion and retention. Interchangeable collets accomodate 3/8" or 1/4" diameter cutting rods; 1/8", 5/32" and 3/16" collets allow the BR-22 to be used as a welding electrode holder. The BR-22 cutting torch has been built to deliver years of trouble free performance at minimum cost. Repair Kits: UW-MSP and UW-CSP