Heavy duty plastic knife is a durable, hardworking knife that can stand upto some of the toughest tasks. The heavy duty knife handle is compatible with X-ACTO® #2, #15, #18, #19, #22, #23, #24, #25, #26 and #28 blades as well as the router assortment and saw blades. The #5 heavy duty plastic knife handle comes packaged with the X-ACTO® #19 angled wood chisel blade. X-ACTO® knives are the preferred cutting tool for a wide variety of professionals and hobbyists alike. Designers and artists love the X-ACTO® knife's ability to produce careful and meticulous cuts with consistency, while engineers praise the knife's durable design and reliability. X-ACTO® knives can make precise cuts through a variety of different craft materials - all grades of paper, mat board, foam board, delicate fabrics, sheet metal, plastic and more. The original X-ACTO® knife has been praised for more than 50 years as the standard for precision. Attaining this level of precision, accuracy and reliability starts with supreme quality craftsmanship. All X-ACTO® knives are built with a carbon steel blade for a reliable cut every time. Additionally, they are crafted with a sleek design that fits comfortably in the hand, allowing you to continue making the precision cuts needed to finish the job, no matter how long it takes.