Value Collection SC109012S Countersink Set 12 Pc Hss

Product Description

The VALUE COLLECTION SC109012S is a 12-piece countersink set designed for creating clean, chamfered seat profiles in a wide range of materials. Each countersink in the set features a single flute geometry with a 90-degree included angle and right-hand cutting direction, making them well suited for deburring and preparing fastener seats in metal, wood, and composite substrates. The tools are manufactured from high-speed steel with a bright, uncoated finish. Head diameters range from 3/16 inch to 2 inches across the set, covering the majority of common fastener sizes encountered in production and maintenance work. The set ships stored in a wood block for organized bench or tool crib storage.

This countersink set is appropriate for machine shops, fabrication facilities, maintenance and repair operations, and general industrial use. The range of head diameters makes it practical for technicians working across multiple fastener sizes without switching between individual tools. The straight shank design is compatible with standard drill press chucks and hand drill chucks. Single-flute construction reduces chatter on hand-held applications and provides good chip clearance in softer materials. This set is typically used by machinists, maintenance technicians, and skilled tradespeople who require consistent chamfer geometry across varied workpiece materials.

Key Features

• 12 countersinks in a single set covering 3/16 inch to 2 inch head diameters
• 90-degree included angle for standard flat-head fastener seating
• Single-flute design reduces chatter and improves chip evacuation
• High-speed steel construction for durability across ferrous and non-ferrous materials
• Right-hand cutting direction compatible with standard drill presses and hand drills
• Wood block storage keeps the set organized and protects cutting edges between uses

Compatibility

Designed as an OEM-style replacement or supplemental set for standard countersinking applications using straight-shank drill press or hand drill chucks.

Installation Notes

Countersinks should be installed by a qualified machinist or trained tradesperson familiar with rotary cutting tools. Secure the shank firmly in the chuck before operation and ensure the workpiece is properly clamped or fixtured to prevent movement. Run speeds should be selected based on workpiece material and tool diameter following standard machining practice. Inspect cutting edges before each use and do not operate damaged or chipped countersinks.