M.a. Ford. 27243700 Solid Carbide Chucking Reamer 0.437 in

Product Description

The M.A. FORD. 27243700 is a solid carbide chucking reamer designed for precision hole finishing in machining applications. With a reamer diameter of 0.437 inches and a diameter tolerance of +0.0001/+0.0004 inches, this tool delivers tight, repeatable hole sizing for close-tolerance work. The straight flute geometry and right-hand cutting direction make it well suited for through-hole reaming in materials that do not produce stringy chips. Overall length is 3.75 inches with a 1.375-inch flute length. Solid carbide construction provides superior rigidity and wear resistance compared to high-speed steel, particularly in harder workpiece materials.

This chucking reamer is intended for use in CNC machining centers, manual lathes, and drill presses where a standard straight shank can be held in a drill chuck or collet. It is commonly used in metalworking shops, tool rooms, and production machining environments for finishing pre-drilled or bored holes to a precise finished diameter. The 6-flute design improves surface finish and distributes cutting load evenly across the tool. It is sold as a single unit and is a Series 272 tool from M.A. FORD.

Key Features

• Solid carbide construction for rigidity and extended tool life in hardened and abrasive materials
• 0.437 inches reamer diameter with a tolerance of +0.0001/+0.0004 inches for close-tolerance hole finishing
• 6-flute straight flute geometry for improved surface finish and balanced cutting action
• Right-hand cutting direction with straight shank for compatibility with standard chucks and collets
• 3.75 inches overall length with 1.375 inches of flute length for controlled reach in typical through-hole applications
• Uncoated finish suitable for use with cutting fluids in a wide range of metalworking operations

Compatibility

Designed as an OEM-style precision chucking reamer for use in drill chucks, collets, and tool holders that accept straight-shank tooling of 0.437 inches diameter.

Installation Notes

This tool is installed and operated by machinists in lathe, mill, or drill press setups. Secure the straight shank firmly in a drill chuck or collet before operation to prevent runout. Always pre-drill or bore the hole to the correct allowance diameter before reaming — do not use this tool to remove excessive stock. Apply appropriate cutting fluid for the workpiece material and never reverse the reamer while it is engaged in the hole.