Harvey Tool 11070 Combo Drill Countersink Size 5 Solid Carbide

Product Description

The HARVEY TOOL 11070 is a solid carbide combined drill and countersink designed for precision center drilling and chamfering in a single operation. With a 7/16-inch body diameter, a 3/16-inch drill point diameter, and a 118-degree point angle, this tool produces accurate center holes and 60-degree countersinks simultaneously. The bright uncoated carbide construction delivers excellent rigidity and edge retention on ferrous and non-ferrous materials. At 2-3/4 inches overall length, it fits standard machining center and lathe setups. Machinists and toolroom operators use this tool to prepare workpieces for turning between centers, spot drilling, and countersink chamfering in production and job-shop environments.

This combined drill and countersink is suited for metalworking applications including CNC lathe center preparation, manual lathe work, and general machining operations requiring a consistent center point and chamfer angle. The double-end configuration allows the tool to be flipped and reused once one end wears, extending service life between replacements. Right-hand cutting direction is standard for conventional spindle rotation on most machine tools.

Key Features

• Solid carbide construction for rigidity and long tool life in demanding materials
• 118-degree drill point angle for accurate center drilling
• 60-degree included angle produces standard countersink chamfer in a single pass
• Double-end design allows both ends to be used, extending usable tool life
• Bright uncoated finish suitable for a wide range of workpiece materials
• Right-hand cut compatible with standard machine spindle rotation

Compatibility

Designed as a standard trade size 5 combined drill and countersink for use in machine tool spindles, lathe tailstocks, and drill press chucks that accept straight-shank tooling of appropriate body diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before loading or removing the tool. Secure the tool firmly in the chuck or collet to minimize runout, which directly affects center hole accuracy. Use appropriate cutting speeds and feeds for the workpiece material per standard machining references to avoid carbide chipping.