Value Collection SC2090040 Countersink 90 Degree 6 Flute

Product Description

The VALUE COLLECTION SC2090040 is a single-end, 6-flute countersink designed for producing clean, chamfered holes at a 90-degree included angle. Built from high-speed steel with a bright, uncoated finish, this tool delivers consistent cutting performance in a wide range of common workpiece materials. It features a straight-cylindrical shank measuring 0.5 inches in diameter and a shank length of 1.125 inches, making it compatible with standard drill chucks and quick-change holders. The right-hand cutting direction suits conventional drilling setups. This countersink is used by machinists, toolmakers, maintenance technicians, and tradespeople who need a reliable, general-purpose chamfering tool without a pilot.

This countersink is suited for countersinking fastener seats, deburring drilled holes, and chamfering edges on metal workpieces in both shop and field applications. The 5/8-inch head diameter and 45-degree centerline angle are well matched to standard flat-head fastener seating requirements in steel, aluminum, and similar materials. It installs without a pilot, making it flexible for use on existing holes where precise pre-drilled diameters have already been established. Typical users include maintenance and repair operations, fabrication shops, and trade professionals performing on-site metalwork.

Key Features

• 90-degree included angle for standard flat-head fastener countersinking
• 6-flute design provides smooth, chatter-resistant cutting action
• High-speed steel construction for durability across common metals
• Bright, uncoated finish suitable for general-purpose applications
• Straight-cylindrical shank fits standard drill chucks and collet holders
• No pilot required, allowing use in a variety of pre-drilled hole sizes

Compatibility

Designed as a general-purpose countersink for use in standard drill chucks and collet holders accepting a 0.5-inch straight shank.

Installation Notes

This tool is installed and operated by machinists and tradespeople using a drill press, hand drill, or milling machine. Secure the workpiece firmly before operation to prevent movement during cutting. Run at appropriate speeds for the workpiece material and apply cutting fluid when working with harder metals to extend tool life. Inspect the cutting edges before use and replace the tool if chipping or wear is observed.