39/64" Reduced Shank Drill Bit | Cobalt | 1/2" Reduced Shank | D/ACO39/64 Grade 5 Easy to install in standard

Easy to install in standard fastener assemblies

Undercut binder: Designed for binder applications requiring secure undercut features

These machine screws deliver durable performance for metal fastening projects

Corrosion resistance: 303 stainless steel provides robust resistance in humid shop environments

Aluminum washers offer a superior strength-to-weight ratio

39/64" Reduced Shank Drill Bit | Cobalt | 1/2" Reduced Shank | D/ACO39/64 Grade 5 Easy to install in standardSpecs Cutting diameter: 39 64" (0. 609375") Shank diameter: 1 2" reduced shank Designation: D ACO Material: cobalt alloy high speed steel Quantity: 1 piece Features Reduced shank design paired with a 39 64" cutting diameter for efficient metal drilling in a compact shank footprint Cobalt alloy construction offers enhanced heat resistance and wear life when drilling hard metals Precision ground tip for accurate starts and cleaner holes in stainless