The Klein 31902 is a bi-metal hole saw kit that contains the most popular sizes for electrical work. It includes the 7/8-inch, 1-1/8-inch, 1-3/8-Inch, 1-3/4-inch, 2-inch and 2-1/2-inch (22, 29, 35, 44, 51 and 64 mm) saws. These saws feature an optimized teeth for a consistent and quick cutting of steel. Alongside with the saws are two arbors that are all enclosed in a rugged carrying case. For tools that are of high-quality and of long-lasting performance, trust Klein. In partnership with PlumbersStock, these tools are now made available to you at an affordable price. Search yours now only here at PlumbersStock - your online plumbing store!