Hall Intrex Blades: One complete system of Large Bone Blades with no tooth offset, for an exact fit with the knee guide and depth markings for increased accuracy. For increased rigidity, these blades are manufactured from high quality enhanced Chromium steel - providing minimal flex compared to similar blades, even at 0.89mm blade thickness. These blades provide maximum cutting efficiency and reduced chatter, even on the hardest bone while the debris clearance channels reduce clogging to minimize the risk of thermal necrosis. M-Class Blades: Engineered to provide precision and control, the M-Class blade offers a unique three element tooth profile that provides significant benefits. Beveled Center Teeth, Coarse Middle Teeth and Fine Outer Teeth work together to provide optimal blade control. During cut initiation, the blade continuously tracks the intended path and controls the work load. By design, the blade self-centers as it cuts resulting in a more even cut. Hall Classic Blades: One versatile blade system with five blade profiles and seven different thicknesses. Innovative tooth set is designed for optimal cutting efficiency.Conmed Oscillating Saw Blade 13mm X 0.89mm X 90mm (Box Of 5)