Harvey Tool 39925-C3 Spotting Drill 1/8 in Solid Carbide Altin

Product Description

The HARVEY TOOL 39925-C3 is a solid carbide spotting drill designed to create precise starter holes for follow-on drilling operations. It features a 140-degree point angle, a 1/8 inch cutting diameter, and an AlTiN (aluminum titanium nitride) coating that improves heat resistance and extends tool life in demanding materials. The overall length is 1.5 inches with a 3/8 inch flute length, making it a compact, rigid tool suited for tight setups. Two spiral flutes with a right-hand cutting direction provide efficient chip evacuation. This drill is intended for use by machinists and tool-and-die professionals in CNC and manual machining environments.

This spotting drill is applicable to general-purpose machining operations where accurate hole location is required before drilling, countersinking, or threading. The 140-degree point angle matches common twist drill geometries, reducing walk and improving positional accuracy. The straight cylindrical shank with a 1/8 inch diameter fits standard collets and drill chucks. Typical applications include production shops, tool rooms, and job shops working with steel, aluminum, stainless, and similar machinable materials.

Key Features

• 140-degree Harvey Type I point for accurate hole spotting and reduced drill walk
• AlTiN coating for improved thermal resistance and extended tool life in ferrous and non-ferrous materials
• Solid carbide construction provides rigidity and dimensional stability
• Two spiral flutes with right-hand cutting direction for efficient chip clearance
• Straight cylindrical shank compatible with standard collets and drill chucks
• Compact 1.5 inch overall length suited for close-clearance and short-reach setups

Compatibility

Designed as an OEM-style solid carbide spotting drill for use in standard collet chucks and drill chuck toolholders accepting a 1/8 inch straight shank.

Installation Notes

Installation and use should be performed by qualified machinists familiar with CNC or manual milling and drilling equipment. Ensure the machine spindle is fully stopped and the tool holder is properly cleaned and torqued before securing the shank. Confirm collet or chuck bore size matches the 1/8 inch shank diameter before mounting. Follow the machine manufacturer and tooling manufacturer guidelines for speed and feed selection appropriate to the workpiece material.