The multi purpose Kiridashi tools are something that were super fun to design and experiment with and are all freehand ground. They are 3.5" long and the materials and thicknesses vary depending on what is available from the drop down menu. They cutting area is a sharpened chisel grind and come with a kydex sheath, then have an exposed bottle opener and prybar for any additional minor tasks you may see fit. Thanks for stopping by to take a look!