Value Collection SC2090024 Countersink 90 Deg 6 Flute Hss

Product Description

The VALUE COLLECTION SC2090024 is a single-end, straight-shank countersink designed for deburring and chamfering operations in metal fabrication and machining applications. Built from high-speed steel with a bright, uncoated finish, this tool features a 90-degree included angle and six flutes for smooth, chatter-resistant cutting. The 1/4-inch diameter straight-cylindrical shank fits standard drill chucks and quick-change holders. Right-hand cutting direction makes it compatible with conventional drill press and hand-drill setups. Machinists, tool-and-die workers, and general fabricators rely on this style of countersink for creating clean, properly sized seats for flat-head fasteners.

This countersink is suited for light-to-medium countersinking work in steel, aluminum, and similar machinable materials. The 3/8-inch head diameter handles common fastener sizes where a 90-degree seat is required. With no pilot and a single cutting end, it is a general-purpose tool used across job shops, production floors, and maintenance operations. The six-flute geometry reduces cutting load per flute, which helps extend tool life in repetitive applications.

Key Features

• 90-degree included angle provides standard chamfer geometry for flat-head fastener seating
• Six flutes distribute cutting load and improve surface finish at the countersink seat
• High-speed steel construction offers toughness across a range of machinable metals
• Bright, uncoated finish suits general-purpose use without specialized coating requirements
• 1/4-inch straight-cylindrical shank fits standard drill chucks and quick-change systems
• Single-end, no-pilot design gives the operator direct control over positioning

Compatibility

Designed as a general-purpose countersink for use in drill presses, CNC machining centers, and hand drills accepting a 1/4-inch straight shank. Compatible with standard 3/8-inch countersink applications requiring a 90-degree included angle.

Installation Notes

Install in a drill chuck or quick-change holder rated for the shank diameter before powering the machine. Set spindle speed according to the workpiece material and head diameter to avoid overheating the cutting edges. Always secure the workpiece firmly before engaging the tool, and do not use excessive feed pressure, which can cause chatter or premature edge wear. Inspect flutes for wear or chipping before each use.