Milwaukee 48-42-5300 4-Inch, 6 Teeth per Inch, Bi-Metal Jig Saw Blades, 5-Pack The product is easy to use The product is durable The product is manufactured in Switzerland 6 TPI, 4 in. Length, Bi-Metal Construction 9/32 in. Width, T-Shank 5 blades per package General purpose blade for fast cutting and cutting nail embedded wood. Limited Warranty