Accupro A-6140025R Spotting Drill 0.25mm Solid Carbide

Product Description

The ACCUPRO A-6140025R is a solid carbide spotting drill designed to create accurate, centered starting points for follow-on drilling operations. With a 0.25 mm cutting diameter and a 120-degree point angle, this tool delivers precise spot indentations that guide twist drills and reduce walking on flat or angled workpiece surfaces. The two-flute spiral design and bright, uncoated finish make it well suited for general-purpose spotting in ferrous and non-ferrous materials. At 30 mm overall length with a 1.5 mm straight-cylindrical shank, it is compact enough for use in precision machining centers and CNC drill presses. Machinists and tooling technicians working in tight-tolerance environments are the primary users.

This spotting drill is intended for precision machining applications where accurate hole location is critical. The 0.25 mm diameter suits micro-drilling work common in electronics manufacturing, watchmaking, medical device fabrication, and other industries requiring small-diameter hole starts. The right-hand cutting direction and single-ended configuration are standard for CNC machining centers and manual drill presses equipped with collet or precision chuck toolholding. The general-purpose tool performance rating covers a broad range of workpiece materials encountered in production and job-shop environments.

Key Features

• 0.25 mm cutting diameter with 0.0098 inch decimal equivalent for micro-drilling applications
• 120-degree point angle centers holes accurately and reduces lateral tool deflection
• Solid carbide construction provides rigidity and wear resistance at small diameters
• Two-flute spiral geometry supports chip evacuation during spotting
• Bright, uncoated finish compatible with a wide range of cutting fluids and materials
• Straight-cylindrical shank fits standard collet chucks and precision toolholding systems

Compatibility

Designed as an OEM-style general-purpose spotting drill for use in CNC machining centers and drill presses equipped with collet or precision chuck toolholding systems accepting a 1.5 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the tool is seated securely in the collet or chuck before operation. At 0.25 mm diameter, the tool is extremely fragile; apply only light feed pressure and avoid side loading. Follow the machine manufacturer's recommended speeds and feeds for solid carbide tooling at this diameter to prevent breakage.