First-Cut, Early Entry Diamond Blade w/ Triangle Knockout - BASIC4000

When you're cutting control joints in fresh concrete before it fully cures, this early entry blade handles the job without damaging green slabs. The BASIC4000 from Diamond Products features a triangle knockout arbor that fits most early entry saws used on job sites. This blade is designed specifically for first-cut applications when timing matters—typically 1 to 4 hours after finishing, depending on conditions. The early entry design minimizes spalling and random cracking while the concrete is still workable. Cuts clean in residential flatwork, commercial floors, and parking structures where you need to get joints in fast. Built for concrete contractors running early entry saw systems who need reliable blades that won't chip edges during those critical first hours.