Value Collection 28618 Countersink 5/8 in 82 Degree 3 Flute Hss

Product Description

The VALUE COLLECTION 28618 is a single-flute countersink designed for deburring and chamfering operations in metal, wood, and composite materials. With a 5/8 inch head diameter and an 82-degree included angle, this countersink produces clean, flat-bottomed seat profiles sized for flat-head fasteners. The 3/8 inch shank fits standard drill chucks and quick-change collet systems. The 3-flute geometry improves cutting stability and chip evacuation compared to single-flute designs. Constructed from high speed steel, the tool holds an edge under moderate heat and feeds without requiring carbide tooling costs. Machinists, fabricators, and maintenance technicians keep this size on hand for everyday countersinking tasks.

This countersink is suited for light to medium production work in job shops, maintenance facilities, and assembly operations. The 82-degree included angle matches the seating geometry of standard flat-head machine screws and is commonly used in metalworking and woodworking applications where flush-mount fastener installation is required. The 3/8 inch shank makes it compatible with most benchtop drill presses and handheld electric drills.

Key Features

• 5/8 inch head diameter for flush seating of flat-head fasteners
• 82-degree included angle matches standard flat-head screw geometry
• 3-flute design promotes cutting stability and efficient chip clearance
• High speed steel construction provides durability in metal and wood substrates
• 3/8 inch shank fits standard drill chucks and quick-change collet holders

Compatibility

Designed as a general-purpose countersink for use in standard drill presses and handheld drills accepting a 3/8 inch shank, suitable for countersinking flat-head fastener seats in metal, wood, and composite materials.

Installation Notes

This tool is installed by machinists, fabricators, and maintenance technicians using a drill press or handheld drill. Secure the workpiece firmly before operation and set spindle speed appropriate for the material being cut. Wear appropriate eye protection and clear chips regularly to prevent clogging. Do not exceed the tool's rated feed pressure, as high speed steel tools can fracture under excessive lateral load.