Features: 5.00" pull through sharpener. "Stick" design for stability while in use. Fixed 40 degree angle sharpening blades. Description: When you take care of your tools, they take care of you - and your pocket knife is no exception. The Redi-Edge Original Knife Sharpener uses Duromite cutters at a fixed 40 degree inclusive angle, giving you a perfect 20 degree double edge on your knives. From fixed blades to fish hooks, Redi-Edge has got you covered. Please note that if you hold your knife in your right hand, you'll want the right-handed sharpener. If you hold your knife left-handed, you'll want the left-handed sharpener. Looking to stay sharp? Check out our sharpener and other accessories to get the most out of your knife.