Value Collection SC10100012 Countersink 100 Deg 1 Flute

Product Description

The VALUE COLLECTION SC10100012 is a single-flute countersink designed for producing clean, accurate countersunk holes in metal and other materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers reliable cutting performance in general-purpose machining applications. The tool features a 100-degree included angle and a 3/16-inch straight-cylindrical shank, making it compatible with standard drill chucks and collet holders. At 0.01 pounds, it is a lightweight, compact tool suited for bench drilling, CNC drilling stations, and handheld drill press work. Machinists and fabricators use this style of countersink to prepare holes for flat-head fasteners.

This countersink is intended for countersinking operations where a 100-degree seat angle is required. The single-flute design reduces chatter and produces a smooth finish in softer metals, plastics, and composites. The 3/16-inch head and shank diameter make it appropriate for small-diameter fastener prep work in tight clearance areas. It is a right-hand cutting tool used with standard forward-rotation drilling equipment. Typical applications include sheet metal fabrication, light manufacturing, and maintenance and repair operations.

Key Features

• 100-degree included angle for standard flat-head fastener seating
• Single-flute design reduces chatter and improves surface finish
• High-speed steel construction provides durability in general-purpose cutting
• Bright, uncoated finish suitable for use in a wide range of materials
• 3/16-inch straight-cylindrical shank fits standard drill chucks and collets
• Right-hand cutting direction for use with conventional forward-rotation equipment

Compatibility

Designed as a general-purpose countersink compatible with standard drill chucks and collet holders accepting a 3/16-inch straight-cylindrical shank.

Installation Notes

This tool is installed and operated by machinists, fabricators, and maintenance technicians using standard drilling equipment. Secure the shank firmly in the chuck or collet before use and confirm the spindle is at a full stop before making any adjustments. Use appropriate cutting fluid for the material being worked to extend tool life and improve finish quality. Follow standard shop safety practices, including eye protection, when operating rotary cutting tools.