The DURO DSBM-PT blade has 10mm “Pro-Turbo” segments, 30 degree sloping gullets and the ability to cut small metal sections. It has long life and fast cutting speeds.Pro-Turbo Segments: Similar 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 cooler.Sloping Gullets: Similar to narrow gullets, key-hole gullets result in less chipping of the material being cut and a reduction in vibration levels.