Crack cutting is done with routers or saws, which is a necessary process before Crack Sealing Machine working. However, because crack cutting can inflict additional damage on the pavement and is often the slowest activity in Crack Sealing operations, it is desirable to use a high-production machine that follows cracks well and produces minimal spalls or fractures.
The vertical-spindle router is perhaps the least damaging and most maneuverable cutting machine; however, its production rate is quite low. Rotary-impact routers are much more productive than vertical-spindle routers; however, depending on the type of cutting bit used, they can cause considerably more damage. Carbide router bits are highly recommended over steel router bits.
