Value Collection BC10P0008 Combo Drill Countersink No. 8

Product Description

The VALUE COLLECTION BC10P0008 is a combination drill and countersink designed for precise hole preparation and 82-degree countersinking in a single pass. Machined from cobalt steel with a bright, uncoated finish, this tool handles harder workpiece materials where high-speed steel would wear prematurely. The body diameter measures 3/4 inches, the drill point diameter is 5/16 inches, and the overall length is 3.5 inches. The plain cutting edge and right-hand cut geometry suit standard rotary drilling setups. It is sized for No. 8 fasteners, making it a direct fit for common screw countersinking applications in metal fabrication, maintenance, and repair work.

This combo drill countersink is intended for use in metal shops, job-site fabrication, and MRO environments where consistent countersink depth and angle are required before fastener seating. The 82-degree included angle conforms to standard flat-head screw geometry. A drill point length of 5/16 inches provides enough pilot depth for accurate positioning before the countersink body engages the material. The double-end style and non-tapered body keep setup straightforward on drill presses and CNC machines alike.

Key Features

• Cobalt steel construction for improved heat and wear resistance compared to standard HSS
• 82-degree included angle matches standard flat-head fastener geometry
• 3/4-inch body diameter with 5/16-inch drill point for No. 8 screw sizing
• Right-hand cut, plain cutting edge — compatible with standard drill chucks and collets
• Double-end style with non-tapered body for consistent countersink profiles
• Bright, uncoated finish suitable for general metal cutting applications

Compatibility

Designed as a standard combo drill countersink for No. 8 fasteners, suitable for use in drill presses, CNC machines, and hand-held drilling equipment that accept 3/4-inch body tooling.

Installation Notes

Install this tool in a drill press, mill, or CNC spindle using an appropriately sized collet or drill chuck rated for the body diameter. Secure the workpiece firmly before engaging the cutter, and use cutting fluid when working with hard or stainless alloys to extend tool life. Inspect the cutting edges for wear or chipping before each use. Power down all equipment completely before changing or adjusting tooling.