Ten bristle types cover the full range of sweeping tasks. Black diamond hardwood blocks are strong and true. Handle mounting slots
are milled. Black diamond brush blocks are engineered for exact fit of tightly engineered mounting hardware. Hardwood blocks are
strong and true, sanded smooth and varnished. Extra stiff polypropylene bristles are great for sweeping heavy debris. For heavy
debris in commercial, mills and mines, farms, foundries, constructions roofing and road work.