Value Collection SC5090D1 Countersink 90 Deg Hss

Product Description

The VALUE COLLECTION SC5090D1 is a single-end, straight-shank countersink designed for countersinking and deburring operations in metal and similar materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it runs a 90-degree included angle and a 45-degree centerline angle. The 1/4-inch straight-cylindrical shank fits standard drill chucks and quick-change holders. With no flutes and a right-hand cutting direction, this tool produces clean, burr-free chamfers in a single pass. It weighs approximately 0.6 pounds. Machinists, toolroom technicians, and maintenance tradespeople reach for this style of countersink when prepping drilled holes for flat-head fasteners or cleaning up sharp edges on sheet metal and plate.

This countersink is suited for bench drilling, drill-press work, and hand-drill applications where a 90-degree chamfer is required. The cutting range spans from a minimum cutting diameter of 5/32 inch to a maximum cutting diameter of 13/32 inch, making it practical for a broad range of fastener hole sizes found in light fabrication, maintenance repair, and general machine shop use. It does not include a pilot, so it is best used in pre-drilled or center-punched holes to maintain concentricity.

Key Features

• 90-degree included angle for standard flat-head fastener countersinks
• High-speed steel construction for durability across a range of workpiece materials
• Bright, uncoated finish suitable for general-purpose shop use
• 1/4-inch straight-cylindrical shank fits standard drill chucks and quick-change holders
• Cutting range from 5/32 inch to 13/32 inch to accommodate multiple fastener sizes
• Right-hand cutting direction, single-end design with no pilot

Compatibility

Designed as a general-purpose countersink for use in drill presses, CNC machines, and hand drills equipped with a 1/4-inch or larger chuck. No specific OEM model compatibility is stated by the manufacturer.

Installation Notes

Install in a drill press, mill, or hand drill with the chuck tightened securely around the 1/4-inch shank before operation. Use low spindle speeds and consistent feed pressure to avoid chatter and maintain hole concentricity, especially without a pilot. Power down and secure the workpiece before tool changes. Eye protection is required whenever operating rotary cutting tools.