About this item Precision 40° Sharpening Angle: Redi Edge knife sharpener factory set at a 40-degree inclusive angle (20 degrees per side) to maintain razor-sharp edges on filet, boning, and utility knives. Durable Aluminum Construction: Redi Edge Knife sharpener is made with aircraft-grade aluminum and clear anodized for enhanced durability, corrosion resistance, and long-lasting performance. Simple & Effective Design: This Knife sharpener is designed for effortless use, making it an ideal entry-level knife sharpener for home cooks, hunters, anglers, and campers. Compact & Portable: Our Knife sharpener is lightweight and easy to carry in your pocket, tackle box, or gear bag, making it perfect for sharpening on-the-go. Made in the USA: Redi Edge Knife sharpener is manufactured with pride in the USA to ensure consistent sharpening quality and dependable results every time.