Description of NINIA Hole Saw 6 Inch 152mm - Heavy Duty HSS Bi-Metal Cutter for Wood & Metal - With Arbor - High Speed Steel Design - Make Cornhole Boards
Material: M42 High Speed Steel, item weight: 2.56 pounds, mandrel diameter: 10.95mm/0.43inch, rotate clockwise. Cutting holes for plywood, thin iron board(within 3mm), acrylic board, gypsum board, ducts(water pipe, besides the stainless steel), ceiling lights, can light(not for hard cement board), etc. High abrasive resistance, extremely durable and provide fast, clean cuts in the toughest materials. Working great and much easier than using a jigsaw. For Ducting, please MEASURE the Ductwork and Fittings FIRST.