The Bore-Max Speed Brush has twice the bristle density of standard brushes for maximum scrubbing power. Stiff nickel plated phosphorous bronze bristles eliminate chemical breakdown in the bore and extend the life of the brush.
Specifications:

Type
Size
Quantity
Bristle Type	Bronze
Length
Includes
Material
Tip Feature
Battery
Thread Pattern	8-32"
Protects	Removes Carbon Build Up
Suitable For
Eco-Friendly