Product Name: Smooth Loss of Wood, Iron, Steel, Aluminum, 8 Heavy Pieces Total Tacd7386 8pcs Ji Made of Cabron Steel to give it hardness and longer life comes the kit consisting of 8 clusters 1 piece 127D for aluminum pieces 1 pieces JBT101D for cutting wood (clean surface) 2 piece jbt118b for metal pieces 4 pieces JBT111C for wood cut (fast pieces) packed in a plastic box technical specifications: carbon steel manufacturing TacSD7386