Keo 919-000-051 Countersink Set 5 Pc 82 Degree Hss

Product Description

The KEO 919-000-051 is a 5-piece single-flute countersink set designed for countersinking operations in metal fabrication and general machining. Each countersink in the set features an 82-degree included angle, straight shank, and right-hand cutting direction. The tools are manufactured from high-speed steel (HSS) with a bright, uncoated finish. Head diameters range from 1/4 inch to 1 inch, giving technicians a range of sizes to match fastener head profiles across a variety of workpieces. The set is stored in a wood block for organized access at the bench or on the job.

This countersink set is suited for metalworking shops, maintenance facilities, and trade professionals who need to prepare holes for flat-head fasteners in steel, aluminum, and similar materials. The 82-degree angle matches the standard profile for flat-head machine screws used in most North American applications. The 5-piece range covers common countersink diameters in a single organized kit, reducing tool changeover time when working across different fastener sizes.

Key Features

• 5-piece set covering 1/4 inch to 1 inch head diameters
• 82-degree included angle for standard flat-head fastener compatibility
• Single-flute design for smooth, chatter-resistant cutting
• Right-hand cutting direction with straight shank
• High-speed steel construction for durability in metal applications
• Wood block storage keeps all five countersinks organized and accessible

Compatibility

Designed for use in standard countersinking applications where an 82-degree single-flute countersink with a straight shank is required. Suitable for use with common drill presses and hand drills accepting straight-shank tooling.

Installation Notes

Countersinks should be installed by machinists or qualified tradespeople familiar with drill press or hand-drill operation. Secure the workpiece firmly before beginning to prevent movement during cutting. Run countersinks at appropriate speeds for the material being worked - lower speeds generally suit harder materials. Inspect each tool for wear or damage before use and replace any countersink that shows chipping or dulling to maintain clean, accurate seat geometry.