Excel Blades Hobby Knife Set, American Made Craft Knife Kit with 13 Assorted Blades (Plastic Case) Complete set of essential hobby knives to own, 100% Made in the USA and includes Excel K1, K2, and K5 knives with 13 assorted blades ideal for precision cutting, trimming, and stripping of wood, cardboard, paper, plastic, cloth, film, foam, and more Knives range from light duty (K1), to medium duty (K2), and heavy duty (K5), making them incredibly versatile in fitting all standard craft knife blades including Xacto Knife Each knife within our kit includes a 4 jaw aluminum chuck for a more secure blade positioning and hold than your standard hobby knife; with a snug fitting, shatter resistant safety cap to protect blade during storage Perfect gift idea for hobbyists, artists, designers, or those with interest in arts and crafts applications  wood carving, scrapbooking, model kits, and more Set comes in a molded plastic case and includes one (1) K1 Light Duty Knife, one (1) K2 Medium Duty Knife, one (1) K5 Heavy Duty Knife, and thirteen (13) assorted super sharp standard hobby blades for cutting, trimming, carving, and chiseling