Harvey Tool 810100 Micro Drill Bit No. 87 Solid Carbide

Product Description

The HARVEY TOOL 810100 is a solid carbide micro drill bit designed for high-precision drilling in tight tolerances. Built to wire gauge size No. 87, this bit measures 0.0100 inches in diameter with an overall length of 1.5000 inches and a flute length of 0.0680 inches. The 130-degree point angle provides a self-centering entry that reduces walking on hard or dense materials. Solid carbide construction delivers the rigidity and wear resistance needed for consistent performance in small-diameter drilling applications. The bright, uncoated finish suits a wide range of base materials without added coating thickness that could affect dimensional accuracy.

This micro drill bit is suited for precision machining work where extremely small hole diameters are required. Typical applications include printed circuit board drilling, watchmaking, instrument manufacturing, medical device fabrication, and other miniature component work. The 1/8-inch shank diameter is compatible with standard collets and drill chucks found on CNC machining centers, drill presses, and rotary tools used in precision manufacturing and toolroom environments. Right-hand spiral flute geometry promotes chip evacuation during through-hole and blind-hole drilling operations.

Key Features

• No. 87 wire gauge size — 0.0100-inch drill diameter for ultra-fine hole requirements
• Solid carbide construction for rigidity and wear resistance in hard materials
• 130-degree point angle reduces bit walk and improves entry accuracy
• Spiral flute design promotes chip evacuation in both through and blind holes
• Bright, uncoated finish maintains true diameter without coating buildup
• 1/8-inch shank diameter fits standard collets and keyless chucks

Compatibility

Designed for use in CNC machining centers, drill presses, and rotary tools equipped with collets or chucks accepting a 1/8-inch shank, as part of the HARVEY TOOL Miniature Drills series.

Installation Notes

Micro drill bits of this diameter should be installed by a qualified machinist or toolroom technician familiar with small-diameter tooling practices. Always secure the shank fully in the collet or chuck before operation and verify runout with a dial indicator when extreme precision is required. At 0.0100-inch diameter, feed rates and spindle speeds must be carefully matched to material hardness to avoid bit breakage. Power down and de-energize the machine spindle completely before changing tooling.