M.a. Ford. 27212950 Chucking Reamer 0.1295 in Solid Carbide

Product Description

The M.A. FORD. 27212950 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production environments. With a reamer diameter of 0.1295 inches and a diameter tolerance of +0.0001 to +0.0003 inches, this tool delivers tight, repeatable bore dimensions in a single pass. The 4-flute straight geometry produces a clean, consistent finish in through and blind holes. A straight shank allows direct mounting in standard chucks and collets. This reamer is installed and operated by machinists and tool and die professionals running CNC or manual machine tools.

This reamer is suited for finish reaming operations in production machining, toolroom work, and precision assembly applications. The 0.1295-inch diameter targets small-bore work where dimensional accuracy is critical, such as pin holes, locating features, and close-tolerance fit bores. The solid carbide construction makes it appropriate for harder workpiece materials and high-speed applications where high-speed steel tooling would wear prematurely. Overall length is 2.5 inches with a flute length of 0.75 inches, providing adequate reach for shallow to moderate-depth features.

Key Features

• Solid carbide construction for wear resistance and dimensional stability in demanding materials
• 0.1295-inch diameter with a tight tolerance of +0.0001 to +0.0003 inches for precision bore finishing
• 4-flute straight geometry for smooth, consistent surface finish
• Right-hand cut, straight shank for straightforward chuck and collet mounting
• Uncoated finish suitable for use with standard cutting fluids across a range of workpiece materials
• Compact 2.5-inch overall length keeps the tool rigid in short-reach setups

Compatibility

Designed as an OEM-style precision cutting tool compatible with standard drill press chucks, CNC machining center collets, and manual lathe tooling setups that accept straight-shank reamers in the 0.1295-inch diameter range.

Installation Notes

Chucking reamers are installed by machinists in a chuck or collet after a pilot hole has been drilled undersize to leave material for the reaming operation. Ensure the machine spindle is aligned with the bore axis before cutting to avoid bell-mouthing or taper. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Handle carbide tooling carefully to avoid chipping the cutting edges during setup and storage.