The Dexter Russell 60070 Square Point Rubber Knife 4 In X 1 In is a must-have for those working in the rubber and tire repair industries. The square point blade provides an excellent balance between strength and durability. The rubber knife has a comfort grip handle, which allows you to work with ease and dexterity. Its high carbon steel blade is tough enough to withstand even the most demanding jobs. It has an overall length of 7 3/4 in., a square point blade, and a hardwood handle. The Dexter Russell Square Point Rubber Knife 4 In X 1 In is just what you need when it comes to repairing tires.