These Irwin Wood Jigsaw Blades are made from Carbon steel for use in softer materials such as wood, laminated chipboard, and plastics. They have 3 Sided, fleam ground teeth for fast cut and clean finishes in all wood applications. T Shank for AEG, Bosch, DEWALT and Hitachi Jigsaws. These Irwin 10504229 (T301CD) Wood Jigsaw Blades produce fast, fine cuts in hard and soft wood, particleboard, laminated particleboard: 4-60mm and plastics: 4-30mm.Additional Information:• Type: Wood• Shank: T• Pack Qty.: 5• Tooth Pitch (TPI): 8• Working Length (mm): 90• Popular Reference: T301CD