Twice the bristle density of standard brushes for maximum scrubbing power. Stiff nickel plated phosphor bronze bristles reduce chemical breakdown in the bore and extend the life of the brush. To achieve maximum effectiveness there needs to be an optimal balance between bristle density and bristle flexibility. The bristle configuration of the Bore-Max Speed Brush provides maximum scrubbing density while retaining enough flexibility to effectively reach down into the lands and grooves. The elongated Speed Jag features multiple compression rings along the entire length of the jag. Bore-Max Speed Jag and Patches are precisely sized to provide the optimal compression and contact to wipe the inner surface of the bore. Tight along the entire length yet still relatively easy to push through. The Speed Jag and Patch system gets more patch material in the bore eliminates bunching and maximizes the effectiveness of each pass-through. Speed Patches are a synthetic material that that has shown superior absorbency over cotton. This material is also more effective at picking up and trapping crud. One pass-through the bore of Speed Jag and Speed Jag Patch delivers the same results as pushing up to 4 or more traditional jags and square patches.