Starrett BU214-5 Multi Purpose Jig Saw Blades with Unified Shank™. These blades will fit in virtually all jigsaw machines. These blades feature 170% more weld contact area than standard bi-metal blades through the Unique™ solid state diffusion bonding process. This ensures exceptionally strong teeth, combined with the multiple cutting edges and split chip advantage, ensure that these blades typically last 25% longer than directly competing products. Supplied in a pack of 5. Specification Length: 50mm, ;Width: 7.5mm, Thickness: 1mm. TPI: 14. Tooth: Regular, Set: Wavy. Capacity: Non Ferrous Metal: 4.8-6.4mm, Wood: 6-30mm & Plastic: 3-12mm. Length dimension references the tooth bearing section of the blades, the total length including shank is approximately 25mm longer.