M.a. Ford 40504680 Combo Drill Countersink 1/8 in Solid Carbide

Product Description

The M.A. FORD 40504680 is a solid carbide combination drill countersink designed for simultaneous drilling and countersinking in a single operation. Part of the Series 405 lineup, this tool features a 1/8-inch body diameter and a 3/64-inch drill point diameter with a 3/64-inch drill point length. The included angle measures 60 degrees, and the right-hand cut geometry suits standard CNC and manual drilling setups. The bright polished finish reduces friction and aids chip evacuation. Overall length is 5 inches, making this a long-length tool appropriate for reaching recessed features. Trade size is listed as Number 1. Machinists, tool and die makers, and aerospace fabricators typically install and operate this tool.

This combination drill countersink is suited for use on cast iron, hardened steel, special alloys, stainless steel, and carbon steel. The double-end style extends tool life by providing two usable cutting ends. The plain cutting edge style and non-tapered, non-aircraft-style configuration make it a straightforward fit for general production countersinking and spot drilling applications. It handles both the primary and secondary workpiece materials listed in the same material families, making it a versatile choice across mixed-material job runs in precision machining environments.

Key Features

• Solid carbide construction for hardness and wear resistance in difficult materials including hardened steel and stainless steel
• 1/8-inch body diameter with 3/64-inch drill point for accurate spot location and countersinking
• 60-degree included angle suits standard countersink and spotting applications
• Double-end design provides two cutting ends per tool, extending service life
• Bright polished finish minimizes built-up edge and promotes smooth chip flow
• Long-length tool at 5 inches overall for reaching deeper or recessed work features

Compatibility

Rated for use on cast iron, hardened steel, special alloys, stainless steel, and steel. Designed for Series 405 combination drill countersink applications requiring right-hand cutting and a 60-degree included angle.

Installation Notes

This tool is installed in standard collet chucks, drill chucks, or tool holders compatible with 1/8-inch shank tooling on CNC machining centers or manual drill presses. Confirm spindle speed and feed rate are appropriate for the workpiece material before operation. Inspect both cutting ends for chipping or wear before mounting. Solid carbide is brittle and should not be subjected to lateral shock loads or improper runout conditions.