Both professionals and hobbyists, rejoice! The Excel Blades’ Excel Blades #18 Large Chisel Blades – 5 Pack is set to become your next favorite tool! These blades are designed to fit your Excel Blades medium duty hobby knife,features a sharp angel-chiseled blade,and is perfect for those looking to carve pliable materials like soft wood, clay or lineolum. The item # 20018 is made of carbon steel. This products works in conjunction with Excel Blades’ medium and heavy duty knives; K2, K5, & K6.It comes with 5 per pack.