PLG2SUPT 4-1/8” Deep HSS Bi Metal Hole Saw Cutter with Arbor Cutting Depth 2.1” for Metal Thick Wood PVC Drywall Aluminum Big Slot New Sharp Teeth Heavy Duty Hole Saw Bit - MKC, HS1-105

• Long Life: Can drill 30 holes (up to) in 0.12" low carbon steel plate. Be careful: It’s better for cutting the thick wood (thickness≥ 0.12”), pls lower the speed at the beginning, otherwise, it is easy to break teeth. Save Time: New sharp teeth: it's faster than the standard one by 50%. New Big Slot: Removing the plug easily, it’s faster than standard one at least 3 times. Package: 1 of 4-1/8” hole saw bit, 1 of mandrel for 1/2” chuck, 1 of silver HSS pilot drill bit for wood, soft metal. 1 of black HSS pilot drill bit for hard metal. Application: Ideal for wood, plasterboard, PVC, MDF, drywall, aluminum. Can cuts thin metal. Not only for wood. It's real bi-metal hole saw. It’s much better for cutting soft material. Max cutting depth: Up to 2.1” (53 mm)