Value Collection SC50100D1 Countersink 100 Degree Hss

Product Description

The VALUE COLLECTION SC50100D1 is a single-end, right-hand countersink made from high-speed steel for countersinking and deburring operations in metal, wood, and composite materials. The tool features a 100-degree included angle, a straight-cylindrical shank measuring 0.25 inches in diameter, and an uncoated bright finish that suits general-purpose shop use. With no flutes and a single cutting end, it is straightforward to operate and easy to maintain. Minimum cutting diameter is 0.156 inches (5/32) and maximum cutting diameter is 0.406 inches (13/32). Machinists, tool and die workers, and maintenance technicians install this type of countersink in drill presses, lathes, and handheld power tools for chamfering fastener seats and cleaning up drilled hole edges.

This countersink is suited for light-to-medium countersinking tasks in production and maintenance environments. The 100-degree included angle is commonly used for aerospace and sheet-metal fastener applications where a wider chamfer angle is required beyond the standard 82-degree geometry. The uncoated high-speed steel construction handles a range of base materials without the risk of coating delamination in interrupted cuts. It ships as a single unit and is appropriate for bench shops, field maintenance kits, and general fabrication operations.

Key Features

• 100-degree included angle (50-degree centerline angle) for wide-chamfer fastener seating
• High-speed steel construction for durability across general shop materials
• Right-hand cutting direction compatible with standard drill press and lathe spindle rotation
• Straight-cylindrical shank at 0.25 inches for secure chuck retention
• Bright uncoated finish reduces cost while maintaining performance for intermittent use
• Single-end, no-flute design simplifies use and regrinding

Compatibility

Designed as a general-purpose countersink compatible with any drill press, lathe, or hand drill chuck accepting a 0.25-inch straight-cylindrical shank. Suitable for countersinking and deburring applications in metal, wood, and composite materials.

Installation Notes

Installation is performed by machinists and maintenance technicians. Secure the straight-cylindrical shank firmly in a drill chuck or collet before operation and verify spindle rotation is set to right-hand before engaging the workpiece. Power down and lock out the machine before changing or adjusting the countersink. Avoid excessive feed pressure, which can cause chatter or chipping on the cutting edge.