The Sandflex® bi-metal hole saws are characterized by excellent performance in most materials such as wood, plastic, non-ferrous and ferrous steels, including stainless steel. They are suitable for electric drills, both stationary and portable. Side slots allow for quick and easy removal of the cores. The maximum cutting depth is 38 mm, with 4/6 teeth per inch. All VIP hole saws are delivered in cardboard packaging, complete with instructions. The maximum hole size is the nominal hole saw size plus 1.5 mm and minus 0.0. Extra large dimensions include 168 mm and 210 mm with 6 TPI and standard cutting depth, as well as 177 mm with 4/6 TPI, with a maximum cutting depth of 50 mm. All large hole saws cut at a 0° cutting angle for a less aggressive cut.