Bimetal hole saws are divided into two kinds of carbon steel, bi-metal hole saws cutting performance is the best opening, can be cut include stainless steel, including all metal, wood, wood with nails, plastic, fiber glass, drywall, fiberboard and composite materials. Standard cutting depth of 1-3 / 8 "1-1 / 2" and 1-7 / 8 ", but also need to be configured to operate the spindle. Only steel hole saw for cutting wood. Hole saw can be divided into monomers and sets two kinds of mode of supply.
 
Specifications are as follows: