Excel no. 17 chisel blade is an excellent addition to any hobby work bench. Use to easily remove thin layers of plastic, such as molded-on details, seam lines, or flashing. Blades can also be used as light duty as a wood chisel.• Carbon steel construction• Fits all standard hobby knife handles, including Excel and Xacto• Use with plastics, wood, balsa wood, foam core, plaster castings, cork, clay, wax, resin, and more• 5 pack • Manufacturer Item #20017Brand: Excel Blades