From the Manufacturer Ideal for straight parallel cuts, Bosch 6-Tooth Jig Saw blades are designed for cutting wood, and softwood plywood sheet like no other. The blades of this 5-pack of 4 cm long and has 6 teeth per inch for fast cutting through material 2-3/8-inches until 1/4-inch thick. FEATURESFor very fast, straight cuts in raw softwood and 5-pack of multiple applications, reduction of 4-inches long for cutting 2-3/8 particle board? Big 6 teeth per inch for fast cutting in thick and hard and soft wood product SPECIFICATIONSPart t-Shank Blades T144D Number Application: straight, parallel cuts in wood, hardboard and softwood cutting capacity: 1 / 4 "-2-3 / 8 "Working Length: 4? Tea