01U005 - Walter 5/16 Inch 82-Degree VP High Speed Steel Countersink

Walter 01U005: The Solution for Chatter-Free Countersinking

Achieve flawless finishes and precise hole preparation with the Walter 5/16" 82° Variable Pitch Countersink. In the world of welding and fabrication, preparing metal surfaces is just as critical as the weld itself. This premium tool (SKU: 01U005) is designed to streamline your workflow by combining three operations—countersinking, deburring, and chamfering—into one highly efficient accessory. Built to withstand the rigors of industrial environments, it offers a significant upgrade over standard carbon steel bits.

Engineered for Performance

The defining characteristic of this Walter countersink is its Variable Pitch technology. Standard countersinks often suffer from "chatter," a phenomenon where the tool vibrates against the workpiece, creating a rough, wavy surface. Walter's engineers have solved this by spacing the flutes irregularly, which prevents the tool from settling into a harmonic rhythm. The result is a smooth, clean cut that requires no secondary finishing, saving you time and effort on every project.

Material Compatibility and Longevity

Made from high-grade M2 High-Speed Steel (HSS), this tool is built to cut through the toughest metals found in a welding shop. It is specifically optimized for:

• Stainless Steel: Resists work-hardening and maintains a sharp edge.
• Steel: Cuts cleanly through mild and structural steels.
• Non-Ferrous Metals: Prevents galling on aluminum and copper alloys.

The specialized surface treatment applied to the tool further reduces heat buildup, a common killer of cutting tools, thereby extending the service life of the bit even under heavy use.

Technical Specifications

With a 5/16-inch diameter and an 82-degree point angle, this countersink is perfectly sized for common fastening requirements. The unique tip geometry ensures easy starting and centering, while the robust shank ensures a secure grip in your drill chuck. Upgrade your machining capabilities with a tool that prioritizes precision, speed, and finish quality.