The Coil Spring Pocket Cutter Bit – 1/2" (0.500") is designed for precision cutting of coil spring cavities in folding knives and other metalworking applications. Engineered for speed and accuracy, this high-speed steel annular cutter creates clean, burr-free holes in steel up to 3/16 inches thick. Unlike traditional twist drills that create a dead zone, this hollow cutter efficiently removes material by cutting around the edge and ejecting the center slug. Featuring a spring-loaded replaceable arbor pilot, this tool ensures seamless slug removal while maintaining cutting accuracy. Optimized for use at 400 RPM with lubrication on tool steel, this USA-made cutter bit is a must-have for serious craftsmen looking for durability and performance in their knife-making and metal fabrication projects.
Specifications:
Material: High-speed steel
Cutting diameter: 1/2 inch (0.500 inches)
Recommended speed: 400 RPM with lubrication on tool steel
Maximum cutting thickness: 3/16 inch
Design: Hollow annular cutter for burr-free cuts
Ejector: Spring-loaded replaceable arbor pilot
Compatibility: Works with Guide B13216
Origin: Made in the USA
