Milwaukee 49-56-3623 Hole Saw Carbide Tipped 3-5/8-Inch The product is easy to use The product is durable The product is manufactured in United States 3-5/8 in. (92 mm) diameter 1-1/2 in. depth of cut Carbide-tipped 3 teeth per inch design Sturdy 3/16 in. thick steel back