Harvey Tool 20265-C3 Micro Drill Bit Size 65 Solid Carbide

Product Description

The HARVEY TOOL 20265-C3 is a miniature solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built to wire gauge size 65, this bit measures 0.0350 inches in diameter with a 130-degree split-point geometry that promotes accurate entry and reduces walking on contact. The 0.3950-inch spiral flute length provides effective chip evacuation during drilling cycles. An AlTiN coating increases surface hardness and thermal resistance, extending tool life in abrasive and harder materials. Right-hand cut spiral flute geometry suits standard CNC and manual spindle rotation. Licensed machinists, tool-and-die makers, and precision fabricators are the primary users of this bit.

This micro drill bit is suited for small-hole drilling operations in metals, composites, and engineered plastics where conventional drill sizes are too large. The 1/8-inch shank diameter allows it to seat in standard collets and drill chucks without adapters, making it compatible with CNC machining centers, drill presses, and precision hand-held spindles. Applications include PCB work, watchmaking, medical device fabrication, aerospace component drilling, and any operation requiring repeatable sub-millimeter hole placement at 0.0350 inches diameter.

Key Features

• Wire gauge size 65 cutting diameter of 0.0350 inches for precision micro-drilling
• 130-degree drill point angle reduces drill walk and improves entry accuracy
• Solid carbide construction delivers rigidity and wear resistance in demanding materials
• AlTiN coating improves thermal resistance and extends tool life in abrasive applications
• Right-hand cut spiral flute promotes efficient chip evacuation in small-diameter holes
• 1/8-inch shank diameter fits standard collets and drill chucks without adapters

Compatibility

Designed for use in CNC machining centers, drill presses, and precision spindle equipment accepting a 1/8-inch shank diameter. Suitable for drilling metals, composites, and engineered plastics requiring a 0.0350-inch hole diameter.

Installation Notes

This tool should be installed and operated by qualified machinists or tool-and-die professionals familiar with micro-drilling procedures. Secure the shank fully in the collet or chuck before spindle engagement and verify concentricity before drilling. Use appropriate cutting speeds and feed rates for carbide tooling in the specific workpiece material. Inspect the cutting edge under magnification before each use, as micro drill bits are susceptible to damage that may not be visible to the naked eye.