6.5" Early Bird® Blades

Early entry means cutting the control joint while the slab is still green, typically 2 to 4 hours after finishing — the "green zone" — so the joint relieves shrinkage stress before random cracking starts. It uses a dedicated early entry saw with a skid plate that holds the slab down at the cut. A conventional wet saw blade is the wrong tool for this window.

They are bond codes: green is soft bond, red is medium bond, orange is hard bond, and purple is extra soft bond. All four are 6.5" and let you match the blade to the aggregate and cure rather than buying one blade for every slab.

Match it inversely to what you are cutting: a softer bond on hard aggregate so fresh diamond keeps exposing, a harder bond on soft or highly abrasive concrete so the segment does not wear away. Cure time matters too, since the same mix cuts very differently at two hours than at six. Tell us the aggregate and how soon after finishing you cut and we will grade the bond for you.

Four of the five are .100" thick, and one medium-bond blade is .225". The thin blades cut the standard narrow early entry joint fast; the .225" blade cuts a wider joint in a single pass where the spec calls for a wider kerf or the joint will be filled.

Early entry joints are shallow by design, typically about a quarter of the slab depth, which is what the 6.5" blade is sized for. These blades use the SCT mount — the Soff-Cut® triangle — which seats flush on those saws and runs with the machine's skid plate. Tell us your saw make and model and we will confirm the mount and the right blade before you order.