DEWALT DW3705H 4-Inch 8 TPI Fast Clean HCS U-Shank Cut Aluminum and fiberglass Jig Saw Blade (5-Pack) Precision ground teeth stay sharper longer and deliver smooth, clean cuts Used in a variety of woodworking and wood cutting jigsaw applications Deeper gullets with increased free space remove more material for faster cutting Fits DEWALT and other universal shank jig saws Quantity: 5 -pack Precision ground teeth stay sharper longer and deliver smooth, clean cuts Deeper gullets with increased free space remove more material for faster cutting Fits DEWALT and other universal shank jig saws