Sandflex bi-metal hole saws excel in most materials such as wood, plastic, non-ferrous and ferrous steels, including stainless steel, delivering outstanding performance. The bi-metal design incorporates 8% cobalt for increased wear resistance. They are suitable for both stationary and portable electric drills. Side slots allow for quick and easy core removal. The maximum cutting depth is 38 mm. There are 4 to 6 teeth per inch. The maximum hole size is the nominal hole saw size plus 1.5 mm, minus 0.0. All hole saws come in self-service packaging with instructions that also serve as tooth protection. These tools are intended for professional use and feature a standard holder for various shanks. They offer high quality in terms of precision, durability, and versatility. No matter what you need to cut, we have the hole saws and shanks you need to tackle any task day after day. From the design of the cutting edges to the manufacturing process, these hole saws are engineered to enhance sawing performance and skill.