Harvey Tool 11020 Combo Drill Countersink Size 0 Solid Carbide

Product Description

The HARVEY TOOL 11020 is a solid carbide combined drill and countersink designed to perform two operations in a single pass. It drills a pilot hole and forms a 60-degree included-angle countersink simultaneously, reducing setup time and tool changes on the machine. The body diameter is 0.125 inches, the drill point diameter is 0.03125 inches (1/32 inch), and the overall length is 1.5 inches. The bright/uncoated finish leaves the carbide substrate exposed, making it well suited for general-purpose work in a range of materials. Right-hand cutting direction and a plain cutting edge style are standard on this size. The tool is double-ended, providing two usable cutting ends per piece.

This tool is used in machining operations requiring a precise center drill and countersink in one step. Trade size 0 makes it appropriate for small-diameter work such as locating center holes on turned or milled parts, preparing countersunk fastener seats, and center-drilling stock before between-centers turning. It is commonly used in machine shops, tool rooms, and production environments where carbide is preferred over HSS for longer tool life and improved runout performance. Machinists and CNC setup technicians are the primary installers and users of this tool.

Key Features

• Solid carbide construction for rigidity and extended tool life compared to high-speed steel alternatives
• Combined drill and countersink geometry performs drilling and countersinking in a single operation
• 60-degree included angle suits standard countersunk fastener seat preparation
• Double-ended design provides two cutting ends per tool, extending service life
• Bright/uncoated finish compatible with a broad range of workpiece materials
• Right-hand cut, plain cutting edge — compatible with standard spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-use combined drill and countersink for standard machine tool spindles accepting straight-shank tooling at 1/8-inch body diameter in the Combined Drill and Countersinks series.

Installation Notes

Installation and use of this tool is performed by machinists or CNC technicians on lathes, mills, or drill presses. Ensure the machine spindle is fully stopped and de-energized before inserting or changing the tool in the holder or chuck. Secure the tool firmly in a precision collet or drill chuck rated for the 1/8-inch body diameter to prevent runout. Follow applicable shop safety procedures and machine manufacturer guidelines for speeds and feeds when running solid carbide tooling.