Lenox Tools 20306BT410S T-Shank Bi-Metal Wood Cutting Jig Saw Blade, 4-Inch x 3/8-Inch x 10 TPI, 2-Pack The product is 2PK 4-1/2"10T Jig Blade Easy to use The product is manufactured in United States Super sharp to cut fast without deflection Smooth Finish Ground to precision sharpness for straight cuts and a smooth finish Ideal for Woodworking Designed for optimal performance in wood cutting, including hardwoods