✅ Industrial-Grade Solid Carbide Construction Made from premium carbide for durability, edge retention, and precision cutting in wood and composites. ✅ High-Speed Precision Ground Engineered for superior balance at high RPMs—ideal for use in plunge routers, CNCs, and handheld routers. ✅ Clean Up-Cut Action Spiral flute design lifts chips upward for smooth cuts, clean edges, and flat-bottom grooves or slots. ✅ Standard 1/4-Inch Shank & Cutting Diameter Compatible with most routers and CNC machines; 1" cutting length, 2-1/2" overall ✅ Perfect for Grooves, Slots & Joinery Great for woodworking projects requiring precise cuts in hardwoods, MDF, plywood, and laminate. ✅ Recommended for Jasper Circle Guides Designed to pair with Jasper’s 200, 240, 290, and 390 circle cutting jigs for flawless circular cuts with a blemish-free finish. Industrial Strength. Precision Cuts. Built for Woodworking Excellence. The Jasper Tools J601 Carbide Spiral Router Bit delivers industrial-grade performance for serious woodworkers and professionals who demand smooth, accurate, and dependable results. Made from premium solid carbide, this up-cut spiral bit features a 1/4-inch cutting diameter and shank, with a 1-inch cutting length and 2-1/2-inch overall length. Precision-ground for balance and high-speed operation, the J601 produces clean, crisp grooves, slots, and dados with razor-sharp flutes designed to pull chips up and out—leaving smooth edges and flat bottoms in every pass. Ideal for hardwoods, softwoods, plywood, MDF, and more, this bit is a trusted choice for cabinetry, joinery, sign-making, and fine woodworking. While excellent for all your cutting needs, the J601 is specially designed to complement the precision of Jasper circle cutting jigs and is the manufacturer-recommended bit for achieving the highest quality results when cutting perfect circles. Trusted by Jasper Tools for optimal performance, this spiral bit gives craftsmen the confidence to make flawless, smooth cuts with every rotation—ensuring clean edges, flat bottoms, and a blemish-free finish. Whether you're using the 200, 240, 290, or 390 series jigs, this bit is the ideal companion for maximizing accuracy and craftsmanship in every project.