Value Collection BC04P0005 Combo Drill Countersink Cobalt

Product Description

The VALUE COLLECTION BC04P0005 is a combo drill countersink designed to drill a pilot hole and countersink in a single pass. Built from cobalt tool steel with a bright uncoated finish, this bit handles harder workpiece materials and elevated heat better than standard high-speed steel. The body diameter measures 7/16 inches, the drill point diameter is 3/16 inches, and the overall length is 2-3/4 inches. The 118-degree drill point angle suits general-purpose metalworking, while the 60-degree included angle on the countersink matches standard flat-head fastener geometry. Right-hand cutting direction is standard for conventional drill press and hand-drill operation.

This combo drill countersink is suited for metalworking shops, maintenance facilities, and fabrication environments where countersinking for flat-head screws or rivets in steel, stainless, aluminum, and similar materials is a routine task. The double-end style and plain cutting edge make it compatible with standard drill chucks. Trade size 5 designates the countersink taper size and matches corresponding screw sizes in that range. Machinists, toolmakers, and maintenance technicians working on sheet metal and structural components will find this a practical single-tool solution for pilot and countersink operations.

Key Features

• Cobalt tool steel construction for improved heat and wear resistance versus standard HSS
• Bright uncoated finish — no coating buildup at the cutting edge
• 118-degree drill point angle for general-purpose metal drilling
• 60-degree included countersink angle matches standard flat-head fastener geometry
• Right-hand cut, plain cutting edge — compatible with conventional drill chucks
• Double-end style for extended tool life

Compatibility

Designed as an OEM-style replacement-grade combo drill countersink for trade size 5 applications in general metalworking and fabrication setups requiring a 3/16-inch pilot with a 7/16-inch body countersink profile.

Installation Notes

This tool is installed by machinists and maintenance technicians using a standard drill press, mill, or hand drill with a compatible chuck accepting a 7/16-inch body shank. Secure the workpiece firmly before operation and use appropriate cutting fluid when working with harder or heat-sensitive metals. Inspect the cutting edges for wear before each use; cobalt bits can chip under side-loading if used improperly. Follow applicable shop safety standards and wear appropriate PPE including eye protection.