PREMIUM DIAMOND BLADE - Kick-Asphalt uses premium diamond segments and is designed to cut asphalt, green concrete (poured within 72 hours), masonry block, and similar abrasive materials. UNDERCUT PROTECTION - Wedge Segments provide undercut protection to prevent premature wear or failure of segments. DEEP U GULLETS - This unique segment/keyslot design allows for better air cooling and chip deflection resulting in better performance. SPECIFICATIONS - 14" diameter X .125 thick with a 1" Arbor. Also included is a 20mm bushing. Fits most hand-held power saws and walk-behind saws. Heat-treated high-speed steel core is guaranteed to withstand the demands of dry cutting. Expected blade life is approximately 6,000 inch feet (one inch foot = 12" length X 1" depth). The recommended operating speed is 5,460 rpm. LIFETIME WARRANTY - All Delta Diamond Products, Inc Diamond Blades, Coring Bits, Hole Saws and Grinding Wheels include a lifetime warranty against warping, cracking, and material defects. If any diamond tool (being used under its intended use with at least 50% wear left) fails to cut or work properly, or if the bond between the diamond segment and the steel core becomes separated at any time, the diamond tool will be replaced.