MK Morse TAC40 The Real McCoy 2-1/2-Inch Hole Saw This item is MK Morse TAC40 The Real McCoy 2-1/2-Inch Hole Saw Used for Power Tool Accessories, Drill Bits & Accessories The product is manufactured in United States High speed hole saw with a handy, built-in arbor Cut wood, plastic, or any machinable metal including tool steel and stainless Instructions for safe and efficient use and longer tool life For small diameter holes, or larger holes in light material; can be used with 1/4" or 3/8" drills For heavy duty applications, 1/2" drills are recommended