The CorePlus Elite Hard Material Diamond Blade features a hard-material specific, Elite Endurance diamond metal matrix that extends the lifetime of the blade way beyond expectation. A precision-engineered, hardened, high-grade 65Mn manganese steel tensioned core ensures the blade runs true. Double laser welding technology reduces the risk of damaged segments, combined with the maximum concentration of ultra-grade diamond that has been meshed within the bond. It also features a state-of-the-art, metallurgically engineered, high-performance and long-life bond formulation that ensures maximum durability and lifetime. Manufactured to EN 13236 quality standard. oSa certified to the highest level of quality and tested safety. The CorePlus HM230E Elite Hard Material Diamond Blade has the following specification: Diameter: 230mmBore: 22.23mmSegment Height: 10mmSegment Width: 2.6mm