Spyder 600091CF 2-3/4-in Bi-Metal Non-Arbored Hole Saw

The Spyder 600091CF is a 2-3/4-inch bi-metal hole saw built for professionals and serious DIYers who need reliable cutting performance across a variety of materials. Its variable tooth pitch geometry is engineered to reduce vibration and deliver cleaner cuts whether you're boring through clean wood, nail-embedded lumber, mild steel, stainless steel, or plastics. The bi-metal steel construction combines a high-speed steel cutting edge with a spring steel body, giving the blade the hardness to cut tough materials and the flexibility to resist cracking under stress.

As a non-arbored hole saw, the 600091CF uses a standard 5/8-18 thread that fits the Spyder Hex10 arbor system as well as most universal hole saw arbors from other brands. When paired with a compatible Spyder arbor, you gain access to the Rapid Core Eject system, which allows you to push out the cut plug without prying, cut at angles, and enlarge existing holes — features that save significant time on repetitive cutting tasks. With a maximum cutting depth of 1-7/8 inches, this hole saw handles standard dimensional lumber, sheet metal, and panel materials with ease, making it a practical addition to any hole saw kit for electrical, plumbing, and general construction work.