You should cut control joints in concrete to a depth of about one-quarter to one-third of the slab’s total thickness. This depth ensures that the joint effectively controls cracking as the concrete cures and contracts. For instance, if you’re working with an 8-inch concrete slab, the saw cuts should reach approximately 2 to 2.7 inches deep. Maintaining this ratio helps direct shrinkage stress into the joints, minimizing the risk of random or uncontrolled cracks across the surface.

If you work with granite long enough, the same questions keep coming back: Why is this brand-new granite saw blade chipping my countertop? Why did the last blade burn out halfway through the job? Can I really use the same blade for granite, marble and concrete? Most of these headaches don't come from "bad blades", but from mismatched choices: the wrong blade type for the material, the wrong diameter for the saw, or the wrong bond and RPM for the job.

When it comes to tile cutting, choosing the right blade and cutting method can make all the difference in the final result. Diamond tile cutting blades are available in two main types — wet cutting and dry cutting — each designed for specific tile materials and job environments.