Bosch HDG214 2-1/4" Diamond Grit Hole SawThe Bosch diamond grit hole saw features vacuum brazing technology for faster cutting and longer life than competitive products. As with Bosch's entire line of hole saws, these products are part of the patented Quick Change universal hole saw system, which lets you change hole saws in seconds. Bosch's diamond grit hole saws start fast and simple, every time.This item is new in packaging. Packaging in good condition with potential signs of warehouse storage.