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 HM300E Elite Hard Material Diamond Blade has the following specification: Diameter: 300mmBore: 20mmSegment Height: 10mmSegment Width: 2.8mmAdditional Information:• Diameter (mm): 300• Bore Diameter (mm): 20