Dimensions 14-210BiMetal Cobalt+ hole saws have a Cobalt alloy band in which the forward grinding of the teeth takes place. The Cobalt alloy makes the teeth harder and thus increases the service life. The professionals choose BiMetal Cobalt+. Standard pitch on the teeth provides easy start-up. No "jumping" on thin sheet metal. Cobalt+ cut teeth cut better than teeth that are punched - often seen on Bimetal hole saws. The cobalt alloy in the blank makes it possible to produce the sharpness of the teeth by grinding. The ground teeth cut particularly well in aluminum and stainless steel. Long service life when cutting metal. Cuts up to 30% more holes compared to BiMetal when working in metal. Sharper teeth give a cleaner cut. No additional machining of drilled holes. The integrated adapter means that the drilled-out blank can be removed without tools and burnt fingers. Long life means fewer purchases. Increased life and better cutting ability reduces power consumption on machines. Can be used on the same drill bit that fits MP (Multi Purpose).