Accupro A-6140040R Spotting Drill 0.4mm 2-flute Solid Carbide

Product Description

The ACCUPRO A-6140040R is a solid carbide spotting drill designed to create precise center spots and chamfered entry points before through-hole or deep drilling operations. It features a 120-degree drill point angle, a cutting diameter of 0.4mm (0.0157 inches), and a 30mm (1.1811 inches) overall length. The two-flute spiral configuration with right-hand cut provides clean material engagement on small-diameter work. The bright, uncoated finish is suited for general-purpose spotting in a wide range of materials. Installed by machinists and tooling technicians, this drill is built for precision CNC and manual drilling setups where accurate hole location is critical.

This spotting drill is intended for general-purpose spotting applications in production and job-shop environments. Its small 0.4mm cutting diameter and 1.5mm shank diameter make it appropriate for fine, close-tolerance work on small components. The straight-cylindrical shank seats directly in standard collets and chucks compatible with the 1.5mm shank size. Typical use cases include pre-spotting pilot holes on metal, printed circuit board assemblies, and small precision parts where runout control is essential.

Key Features

• 120-degree drill point angle for accurate spot and chamfer geometry
• Solid carbide construction for rigidity and wear resistance in general-purpose materials
• Two-flute spiral design with right-hand cut for efficient chip clearance
• Bright, uncoated finish — no coating buildup risk on very small diameters
• Straight-cylindrical shank for direct seating in standard collets and chucks
• Single-ended tool optimized for dedicated spotting operations

Compatibility

Designed as an OEM-style general-purpose spotting drill suitable for CNC machining centers and manual drill presses equipped with collets or chucks accepting a 1.5mm straight-cylindrical shank.

Installation Notes

This tool is installed and changed out by machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before inserting or removing the drill. Use a properly sized collet or chuck to minimize runout, which is especially critical at sub-millimeter diameters. Verify tool projection and runout with a dial indicator before beginning production cuts.