Bore Tech Bronze Bore Brush 22 Cal Rifle 8-32 Bronze 2.50" Bronze Brush Its Not Just a Brush Its a Bore Tech Benchmark Brush! Bore Techs Benchmark Phosphor Bronze Bore Brushes Are Known For Being The finest In The Industry And Set The Benchmark For All Other Phosphor Bronze Brushes. With Twice The Amount Of Oversized bristles, Double Wound cores With looped ends And Barrel Safe studs These Brushes Provide Long-Lasting, Safe And Effective Scrubbing Action. Bristle Type: Bronze Length: 2.50" Material: Bronze Thread Pattern: 8-32