Value Collection SC2090032 Countersink 90 Deg 6 Flute Hss

Product Description

The VALUE COLLECTION SC2090032 is a single-end, 6-flute countersink designed for right-hand cutting in a wide range of metal and wood applications. Built from high-speed steel (HSS) with a bright uncoated finish, it features a 90-degree included angle and a 45-degree centerline angle, producing clean, accurate countersunk seats for flat-head fasteners. The 1/2-inch head diameter pairs with a 1/4-inch straight-cylindrical shank, making it compatible with standard drill chucks and quick-change holders. At 0.06 pounds, it is a lightweight tool suited for both bench drill press and handheld drill use. No pilot is included. Machinists, toolmakers, and general fabricators are the primary users.

This countersink is used wherever a 90-degree countersink is required to seat flat-head machine screws, wood screws, or sheet metal fasteners flush with or below a workpiece surface. Typical applications include light fabrication, sheet metal work, woodworking, and general machine shop operations. The 6-flute geometry reduces chatter compared to single- or double-flute designs, producing a smoother finish on the countersunk seat. The straight-cylindrical shank fits standard 1/4-inch collets and drill chucks without adapters. It is intended for single-end use and does not accept a pilot pin.

Key Features

• 90-degree included angle for standard flat-head fastener seating
• 6-flute design reduces chatter and improves surface finish
• High-speed steel construction for durability across common workpiece materials
• Bright uncoated finish — no coating to chip or flake during use
• 1/4-inch straight-cylindrical shank fits standard drill chucks and collets
• Single-end tool with no pilot — used without a guide pin

Compatibility

Designed as a general-purpose countersink for use in standard drill presses, CNC machining centers, and handheld drills equipped with a 1/4-inch chuck or collet capable of accepting a straight-cylindrical shank.

Installation Notes

This tool is installed by machinists, fabricators, and maintenance technicians using standard drill press or hand drill setups. Secure the 1/4-inch shank firmly in the chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Run at appropriate speeds for the workpiece material — higher speeds for softer materials, lower speeds for harder metals. Inspect the cutting edges for wear before each use; a dull countersink will produce rough seats and may cause workpiece damage.