Harvey Tool 20110 Micro Drill Bit Wire 85 130 Pt Carbide

Product Description

The HARVEY TOOL 20110 is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. It carries a wire gauge size of 85, which corresponds to a decimal diameter of 0.0110 inches, and features a 130-degree point angle that promotes accurate entry and reduces walking on hard or brittle materials. The spiral flute geometry clears chips efficiently during the cut. At 1.5000 inches overall length with a 1/8-inch shank diameter, this bit fits standard miniature drill chucks and collet holders used by machinists, tool-and-die makers, and precision fabricators.

This micro drill is suited for small-hole work in metals, plastics, composites, and printed circuit board materials where conventional high-speed steel bits lack the rigidity and edge retention needed. The bright uncoated finish makes it a practical choice for general-purpose micro drilling where coating chemistry is not required by the application. It is part of the HARVEY TOOL Miniature Drills series and is sold individually.

Key Features

• Wire size 85 — 0.0110 inch decimal diameter for ultra-small hole work
• 130-degree point angle reduces wandering and improves entry accuracy
• Solid carbide construction provides rigidity and edge retention beyond HSS
• Spiral flute design promotes chip evacuation in deep micro holes
• 1/8-inch shank diameter compatible with standard miniature chucks and collets
• Bright uncoated finish — suitable for general-purpose micro drilling applications

Compatibility

Designed for use in miniature drill chucks and collet holders accepting a 1/8-inch shank diameter. Suitable as an OEM-style replacement or direct purchase within the HARVEY TOOL Miniature Drills series.

Installation Notes

This bit is installed by a machinist or precision fabricator in a drill press, CNC machining center, or handheld precision drill with a compatible 1/8-inch collet or chuck. Ensure the machine spindle is fully stopped and the workpiece is securely fixtured before bit changes. Solid carbide is brittle — avoid side loading, leverage, or impact during installation and operation. Follow the machine tool manufacturer guidelines for appropriate feed rates and spindle speeds when drilling at this diameter.