Value Collection SC3082040 Countersink 82 Deg 4 Flute Hss

Product Description

The VALUE COLLECTION SC3082040 is a single-end, 4-flute countersink designed for creating clean, accurately angled seat holes in metal and other materials. Built from high-speed steel (HSS) with a bright/uncoated finish, it operates with a right-hand cutting direction and an 82-degree included angle — the standard angle for flat-head fastener seating in most machining and fabrication applications. The 5/8-inch head diameter and 1/2-inch straight-cylindrical shank make it compatible with standard drill chucks and milling machine toolholders. No pilot is included, so the operator controls concentricity through setup and fixturing.

This countersink is suited for machine shops, maintenance facilities, and production environments where 82-degree flat-head screw seats are required. It is commonly used on drill presses, milling machines, and CNC machining centers. The 4-flute geometry provides a balance of chip clearance and surface finish quality, making it appropriate for use in steel, aluminum, brass, and similar machinable materials. It is sold as a single unit and is well-suited for both job-shop and light production use.

Key Features

• 82-degree included angle (41-degree centerline angle) matches standard flat-head fastener geometry
• 4-flute design balances chip evacuation and finish quality
• High-speed steel construction provides durability across a range of machinable metals
• Bright/uncoated finish — no coating buildup at the cutting edge
• 1/2-inch straight-cylindrical shank fits standard drill chucks and collet holders
• Single-end, no-pilot design allows direct use in a chuck without a bushing

Compatibility

Designed as a standard 82-degree countersink for use in drill presses, milling machines, and CNC machining centers accepting a 1/2-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by machinists or qualified trade personnel familiar with rotating cutting tools. Secure the shank firmly in the chuck or collet before operation and verify runout before cutting. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish. Always reduce spindle speed relative to standard drilling operations, as countersinks are sensitive to chatter at high RPM.