M.a. Ford 27212900 Chucking Reamer 0.1290 in Solid Carbide

Product Description

The M.A. FORD 27212900 is a solid carbide chucking reamer designed to produce tight-tolerance finished holes in metalworking and machining applications. Built to Series 272 standards, this reamer features a 0.1290-inch diameter with a reamer diameter tolerance of +0.0001 to +0.0003 inches, making it suited for precision bore work where dimensional accuracy is critical. The straight, right-hand flute geometry and right-hand cutting direction deliver clean, consistent material removal. With a bright, uncoated finish and 4-flute configuration, this tool is typically installed by machinists and tool-and-die professionals working with CNC machining centers, drill presses, and manual lathes.

This chucking reamer is used in production and job-shop machining environments where small-diameter hole finishing is required. The straight-cylindrical shank allows direct chuck mounting without adapters, simplifying setup in standard 3-jaw and collet-style tool holders. It is well suited for finishing pre-drilled or bored holes to precise dimensions in ferrous and non-ferrous metals. The compact overall length of 2.5 inches makes it practical for close-clearance work. Machinists producing dowel-pin fits, bearing seats, or precision-fit assemblies will find this reamer appropriate for their finishing passes.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision reaming operations
• 0.1290-inch reamer diameter with tolerance of +0.0001 to +0.0003 inches for tight-tolerance hole finishing
• 4-flute, straight-flute geometry with right-hand cutting direction for smooth material removal
• Straight-cylindrical shank for direct chuck mounting without adapters
• Bright, uncoated finish suitable for use across a range of common workpiece materials
• Compact 2.5-inch overall length with 0.75-inch flute length for close-clearance applications

Compatibility

Designed as an OEM-style solid carbide chucking reamer for use in standard drill-press, lathe, and CNC machining center tool holders accepting a straight-cylindrical shank.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with reaming operations and cutting tool safety. Ensure the spindle is fully stopped and the machine is powered down before mounting or removing the reamer from the tool holder. Verify shank seating and chuck runout prior to operation, as excessive runout will negatively affect bore tolerance and tool life. Follow established shop practices and applicable OSHA machine-guarding requirements when operating rotating cutting tools.