Short Trim Brush Pad Drivers - 12mm (½") long bristles are unevenly trimmed and penetrate into the pad, for optimum pad-holding ability. Used with our pad clip holder assembly. This is a centre-retaining device, for secure holding and quick release of floor pads. The short trim brush pad holder is very robust and economical. It is a favourite with cleaning contractors on large multi brush automatic scrubbing machines as well as on low speed single brush machines (200rpm).