The DURO diamond construction blade is a cutting blade with a 15mm segment height, ventilated core, 30 degree gullet design and turbo segments for fast debris clearance, longer life, less chipping and blade cooling. It's reinforced flange gives increased stability.FEATURESSimilar to continuous turbo rims, there is less chipping of the material and faster cutting thanks to the castellation of the segment. The debris is cleared quicker and the blade is kept coolerA reinforced flange gives the diamond blade more stability under extreme use and keeps the steel core in line, therefore giving a cleaner, straighter cutIn line, 30 degree gullets help clear debris faster and they improve life as a resultCooling holes in a blade as the says, will keep the steel core cool and will prevent distortion of that core. Keeping the diamond matrix cool in segments will improve speed and life