Don’t be fooled by the dog-tag sized REDTL, they are full-featured, go-anywhere, high performance knife sharpeners. The Redi-Edge® Dog Tag features include military-grade aluminum construction for extreme durability, long life and lightweight, a proprietary corrosion-resistant finish and a honing surface on the back. The Duromite™ inserts are harder than any knife blade! These dog tag sharpeners come factory pre-set to the inclusive angles of 40° and 60°. The 40° inclusive angle maintains a consistent 20° double cutting edge on most knives. The 60° inclusive angle maintains a consistent 30° double cutting edge on tactical knives. Comes with a lanyard hole for easy attachment to rope, clips, or a chain.
 
Instructions for use here
 
100% Made in the U.S.A. with a Lifetime Warranty!