The BlueSpot 5 PCE HCS Fast Cut Jigsaw Blades For Wood (6 TPI) are specifically designed for exceptional cutting performance in hardwood, softwood, chipboard, plywood and plastics. Manufactured from high carbon steel to ensure long lasting quality. The T-Shank fitting is suitable for use with most popular jigsaw models. The 6 TPI blade design is perfect for cutting wood with a diameter less than 45mm and plastic less than 50mm. Similar to T101D blades. Each pack contains 5 blades.