Value Collection SC2160048 Countersink 3/4 in 6 Flute

Product Description

The VALUE COLLECTION SC2160048 is a single-end cobalt steel countersink designed for machining countersunk holes in ferrous and hard materials. It features a 3/4 inch head diameter with a 60-degree included angle (30-degree centerline angle) and six flutes for smooth, efficient material removal. The straight cylindrical shank measures 1/2 inch in diameter, making it compatible with standard drill chucks and collet holders. The bright, uncoated finish is suitable for general-purpose countersinking applications. This tool is used by machinists, fabricators, and maintenance technicians working with drill presses, milling machines, and CNC equipment.

The SC2160048 countersink is suited for countersinking screw and fastener seats in metal workpieces in both shop and field environments. Its right-hand cutting direction aligns with standard spindle rotation, and the six-flute geometry reduces chatter and produces a cleaner seat finish compared to fewer-flute designs. It does not include a pilot, so center alignment relies on operator technique or a center-drilled starting hole. Typical applications include deburring, chamfering, and preparing holes for flat-head fasteners in steel and similar materials.

Key Features

• 3/4 inch head diameter with 60-degree included angle for standard fastener seat geometry
• Six flutes for reduced chatter and improved surface finish
• Cobalt steel construction for increased heat and wear resistance compared to standard high-speed steel
• 1/2 inch straight cylindrical shank for compatibility with common chuck sizes
• Right-hand cut matches standard spindle rotation on drill presses and mills
• Bright, uncoated finish; no pilot included; single-end design

Compatibility

Designed as a general-purpose countersink for use in drill presses, milling machines, and hand-held drilling equipment accepting a 1/2 inch straight shank.

Installation Notes

This tool is installed and operated by machinists or trained fabricators. Secure the shank fully in the chuck or collet before operation and confirm the workpiece is firmly clamped. Power down and de-energize the machine before changing tooling. Use appropriate cutting fluid or lubrication when countersinking hard ferrous materials to extend tool life and improve finish quality.