Description: Excel Blades 20028 #28 Concave Carving Replacement Blade, 5 Pack Features: Made from carbon steel. Comes in packs of: 5 / 100 / 200 A mainstay in any professional DIY kit, these indispensable tools of the trade are your new go to for whittling, carving and the initial shaping of a variety of different materials. This versatile replacement blade fits with all standard medium to heavy duty craft knives. Used with: matte board, linoleum, foam core, plastic, cardboard, plaster cast, cork, metal, stone, wood, balsa wood, rubber, wax, clay and more. Used for: shaping, trimming, shaving, cutting, and chiseling matte board, linoleum, foam core, plastic, cardboard, plaster cast, cork, metal, stone, wood, balsa wood, rubber, wax, clay, and more. Used by: hobbyist, wood carvers, metal workers, stone masonry, architects, costume designers, crafters, contractors, designers, and carpenters. Fits with: K2 / K5 / K6 L œ 1.780/ H œ 0.440 / E - 1.082 / S œ 0.345 / T œ 0.025