Value Collection SC2060020 60 Deg 6 Flute Hss Countersink

Product Description

The VALUE COLLECTION SC2060020 is a single-end, 6-flute countersink designed for right-hand cutting in a wide range of metalworking and fabrication applications. Built from high-speed steel (HSS) with a bright, uncoated finish, this tool produces clean, accurate conical seats at a 60-degree included angle (30-degree centerline angle). The straight-cylindrical shank measures 0.25 inches in diameter with a shank length of 1 inch, fitting standard drill chucks and collet holders. At 0.06 pounds, it is lightweight and easy to handle. No pilot is included, making it a straightforward drop-in for manual or CNC-driven countersinking operations. Machinists, tool-and-die workers, and general fabricators will find it well suited to production and maintenance work.

This countersink is used when a 60-degree conical seat is required — common in aerospace fastener prep, instrument and optical assembly, and precision machining where standard 82-degree or 90-degree angles are not specified. The 0.3125-inch head diameter and 6-flute geometry produce a smooth finish with minimal chatter at moderate speeds on steel, aluminum, brass, and similar materials. It is suited for both bench-drill and CNC-lathe or milling-center use where a straight-shank tool is acceptable.

Key Features

• 60-degree included angle for precision conical seating in specialized fastener and instrument applications
• 6-flute design reduces chatter and produces a finer surface finish compared to fewer-flute countersinks
• High-speed steel construction provides adequate hardness and toughness for steel, aluminum, and non-ferrous materials
• Bright, uncoated finish — suitable for general-purpose use without added coating cost
• Straight-cylindrical shank at 0.25 inches diameter fits standard drill chucks and collet systems
• Single-end, no-pilot configuration for straightforward setup and replacement

Compatibility

Designed as a general-purpose replacement or spare countersink for any setup accepting a 0.25-inch straight-cylindrical shank tool with a 60-degree included angle geometry.

Installation Notes

Installation is performed by machinists or qualified tool operators. Secure the shank firmly in the drill chuck or collet before operation and confirm the spindle is fully stopped before changing tools. Use appropriate cutting fluid or lubricant for the workpiece material to extend tool life and improve finish quality. Follow applicable shop safety protocols and machine manufacturer guidelines for speed and feed selection.