M.a. Ford 40507810 Combo Drill Countersink 3/16 Inch Solid Carbide

Product Description

The M.A. FORD 40507810 is a Series 405 combination drill and countersink designed for simultaneous drilling and countersinking in a single operation. Built from solid carbide with a bright polished finish, this tool delivers the hardness and edge retention needed for demanding workpiece materials. The body diameter measures 3/16 inches, the drill point diameter is 5/64 inches, and the overall length is 5 inches. The 60-degree included angle and plain cutting edge make it well suited for producing clean, accurately seated countersinks. It is installed by machinists and toolroom professionals working in CNC or manual machining environments.

This combo drill countersink is a long-length tool rated for use on cast iron, hardened steel, stainless steel, special alloys, and general steel. Trade size 2 places it in a standard sizing family for precision machining applications. The double-end configuration extends tool life by providing two usable cutting ends. It is appropriate for aerospace-adjacent precision work, job shop operations, and production machining where hole preparation and countersinking must be performed in one pass on tough materials.

Key Features

• Solid carbide construction for hardness and wear resistance on ferrous and hardened materials
• Bright polished finish reduces friction and aids chip evacuation
• 60-degree included angle for standard countersink geometry
• Double-end design provides two cutting ends for extended service life
• Long-length tool at 5 inches overall for reach into deeper setups
• Right-hand cut with plain cutting edge style for consistent, controlled entry

Compatibility

Designed for use on cast iron, hardened steel, special alloys, stainless steel, and general steel workpieces. Suitable for CNC machining centers and manual milling or lathe setups that accept standard shank drill countersinks in the Series 405 family.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with carbide tooling requirements. Secure the tool firmly in the appropriate collet or chuck before operation and verify runout before cutting. Carbide tooling is brittle - avoid side-loading or interrupted cuts that can cause chipping. Always follow machine manufacturer guidelines for spindle speed and feed rate based on workpiece material and tool diameter.