Bi-metal hole saws
Variable pitch hole saws, deep cutting hole saws, bi-metal hole saws, hole saws, saws for cutting holes.
Arbors and pilot drills for these hole saws are listed on our Arbors, mandrels page. Hole saw diameters 1 3/16" and smaller, have 1/2"-20 arbor threads. Hole saw diameters 1 1/4" and larger, have 5/8"-18 arbor threads and can all use arbors with drive pins.
Additional hole saws include: Carbide grit edge hole saws , Carbide tipped teeth hole saws , and Diamond coated hole saws . Two different types of Spade bits are also available for drilling and boring through wood and thick FRP.
Variable pitch
Cobalt M42 cutting edge provides increased steel strength compared to M3 standard steel. 1 7/8" cutting depth and a 4/6 variable tooth configuration. Fleem ground teeth clear chips away fast. Thin kerf design for faster cuts and greater precision. Backing plate is 3/16" thick heavy-duty steel. For long life and fast cutting of fiberglass, plastic, wood, steel, aluminum, brass and cast iron. Cats eye openings in backing plate allow easy plug removal and line of sight visibility. Diamond shaped sidewall cutouts increase visibility while cutting.