CRAFTSMAN Bi-metal Non-arbored Hole Saw Set (7-Piece)7 Piece bi metal hole saw set provides the most commonly used sizes for a variety of wood and metal cutting applications. Long life and added durability: bi metal construction for long life and added durability Variety of sizes: most popular sizes for common jobs with a storage case Common application include wood cutting and metal cutting Includes (1) 1 in hole saw; (1) 1 1 4 in hole saw; (1) 1 1 2 in hole saw; (1) 1 3 4 in hole saw; (1) 2 in hole