M.a. Ford. 40439370 Solid Carbide Spotting Drill 10mm

Product Description

The M.A. FORD. 40439370 is a solid carbide spotting drill designed to create accurate center spots and chamfers before finish drilling operations. Built to Series 404 specifications, this tool features a 90-degree drill point angle, a 10mm cutting diameter (0.3937 inches), and a 70mm overall length (2.7559 inches). The bright, uncoated carbide construction provides reliable performance across a range of workpiece materials in general-purpose machining applications. With a 30mm spiral flute length and a 21-degree helix angle, it promotes clean chip evacuation and consistent spot geometry. Machinists and tool-and-die professionals install this drill in CNC machining centers and manual knee mills alike.

This spotting drill is suited for general-purpose metal removal applications in both job shop and production environments. The straight-cylindrical shank seats directly into standard collet chucks, drill chucks, and toolholders with a 10mm bore. The single-ended, right-hand cutting geometry makes it straightforward to qualify hole locations prior to twist drilling, reaming, or boring. Its 90-degree included angle aligns with common insert drill and countersink geometries, reducing the need for secondary operations when preparing surfaces for fasteners or precision bores.

Key Features

• 90-degree drill point angle for accurate pre-drill spotting and chamfering
• Solid carbide construction for rigidity and wear resistance in general-purpose machining
• 30mm spiral flute length (1.1811 inches) with 21-degree helix angle for efficient chip evacuation
• Bright, uncoated finish — ready to use out of the box or re-coat to customer specification
• Straight-cylindrical 10mm shank fits standard collets and drill chucks without adapters
• Right-hand cut, two-flute design for stable entry and precise spot geometry

Compatibility

Designed as an OEM-style general-purpose spotting drill compatible with standard 10mm straight-cylindrical toolholders and collet systems used in CNC and manual machining operations.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Secure the straight shank in a properly sized collet or drill chuck and verify runout before use, as excessive runout will degrade spot location accuracy. Power down and lock out the spindle before changing tooling. Follow the machine tool manufacturer and applicable shop safety guidelines for speeds, feeds, and coolant application when running carbide cutting tools.