Value Collection 28629 Countersink 5/8 in 82 Deg 6 Flute Hss

Product Description

The VALUE COLLECTION 28629 is a high speed steel (HSS) countersink designed for creating clean, chamfered seat profiles in metal, wood, and composite materials. With a 5/8 inch head diameter and an 82-degree included angle, this tool produces the precise conical recesses required for flat-head fasteners to sit flush with or below the workpiece surface. The 6-flute geometry distributes cutting load evenly, reduces chatter, and produces a smoother finish than lower-flute-count alternatives. The 1/2 inch shank diameter is compatible with standard drill press chucks and milling machine tool holders. Machinists, tool-and-die workers, and fabricators rely on this type of countersink for production and maintenance work.

This countersink is suited for use in machine shops, fabrication facilities, and maintenance environments where consistent countersink geometry is required. The 82-degree angle matches the seating profile of most imperial flat-head machine screws and is commonly specified for sheet metal, structural plate, and general machining applications. It is sold individually and is appropriate for use in drill press, milling machine, or CNC setups where a 1/2 inch shank holder is available.

Key Features

• 5/8 inch head diameter produces a properly sized countersink seat for standard flat-head fasteners
• 82-degree included angle matches the seating geometry of common imperial flat-head machine screws
• 6-flute design reduces chatter and delivers a smoother finished surface compared to fewer-flute tools
• High speed steel (HSS) construction provides good wear resistance across a range of workpiece materials
• 1/2 inch shank diameter fits standard drill press chucks and milling machine collets

Compatibility

Designed as a general-purpose countersink for use in drill press, milling machine, or CNC setups equipped with a 1/2 inch shank tool holder. Compatible with ferrous metals, non-ferrous metals, wood, and composite materials typical in machining and fabrication work.

Installation Notes

This countersink is installed and operated by machinists, fabricators, or maintenance technicians using a drill press, milling machine, or CNC machining center. Secure the 1/2 inch shank firmly in the chuck or collet before operation and confirm the workpiece is clamped to prevent movement during cutting. Use appropriate cutting fluid or lubricant for the workpiece material to extend tool life and improve surface finish. Inspect flute edges for wear or chipping before use and replace the tool if cutting geometry is compromised.