M.a. Ford. 27218900A Chucking Reamer 0.1890 in Carbide 4 Flute

Product Description

The M.A. FORD. 27218900A is a solid carbide chucking reamer designed to finish-ream precision holes to a wire size 12 diameter of 0.1890 inches. Built to Series 272 standards, it features a straight-cylindrical shank for secure chuck mounting and four straight right-hand flutes with an ALtima coating for extended tool life in ferrous and non-ferrous materials. The overall length is 2.75 inches with a flute length of 0.875 inches. Diameter tolerance is held to +0.0001 to +0.0003 inches over nominal, making it suited for close-tolerance hole finishing in production and job-shop environments. Machinists and toolroom operators are the primary users.

This reamer is intended for finishing operations where hole diameter, roundness, and surface finish must meet tight tolerances. It is appropriate for use in CNC machining centers, drill presses, and manual lathes where a straight-cylindrical shank fits the available collet or chuck. Typical applications include finishing drilled or bored holes in steel, aluminum, brass, and similar workpiece materials. The ALtima coating helps maintain cutting edge integrity during higher-volume runs. This is a modified standard item and is non-returnable and non-cancelable once ordered.

Key Features

• Solid carbide construction provides rigidity and wear resistance for precision reaming
• ALtima coating extends tool life and reduces built-up edge in a range of workpiece materials
• Four straight right-hand flutes cut right-hand in standard forward feed
• Diameter tolerance of +0.0001 to +0.0003 inches ensures consistent close-tolerance results
• Straight-cylindrical shank fits standard collets, drill chucks, and toolholders
• Compact 2.75-inch overall length suits shallow-hole applications and tight-clearance setups

Compatibility

Designed as a Series 272 OEM-style chucking reamer for use in machine tool setups accepting a straight-cylindrical shank. Fits standard collets and drill chucks sized for the shank diameter. No specific machine model compatibility was stated in the product data.

Installation Notes

Chucking reamers are installed and operated by machinists following standard machine tool safety practices. Power down the spindle and ensure the machine is in a safe state before mounting or removing the tool. Secure the shank fully in the collet or chuck to the manufacturer-recommended engagement depth before operating. Use appropriate cutting fluid for the workpiece material and do not reverse the spindle direction, as this reamer is designed for right-hand cutting only.