Cutting a perfectly round hole in wood, plastic, metal, or even ceramic tile requires a specialized type of cutting tool —the ...
Bi-Metal Hole Saw Kit, HYCHIKA 17 Pcs High Speed Steel 3/4" to 2-1/2" Hole Saw Set in Case with Mandrels, Hole Saw Bit, Hole Saw for Thin Metal, Hard Wood, Drilling PVC Board, and Plastic Plate ...