M.a. Ford 27249950 Chucking Reamer 0.4995 in Solid Carbide

Product Description

The M.A. FORD 27249950 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.4995 inches and a tight tolerance of +0.0001 to +0.0004 inches, this tool delivers accurate, repeatable bore sizing in production and maintenance machine shop environments. The straight flute geometry and right-hand cut are suited for through-hole and blind-hole reaming in materials where chip control is manageable. The straight shank allows direct mounting in drill chucks, collets, or reamer holders on lathes, drill presses, and CNC machining centers. Machinists and tool and die technicians are the primary users of this type of cutting tool.

This reamer is appropriate for precision finishing operations where hole diameter, roundness, and surface finish are critical. The 0.4995-inch diameter corresponds to the dowel pin size designation, making it a common choice when fitting close-tolerance dowel pins in fixturing, jig building, and die work. With a 1.5-inch flute length and 4-inch overall length, it fits standard machine setups without extended-reach toolholders. It is suitable for use in both manual and CNC machine tool environments across general manufacturing, tool rooms, and maintenance shops.

Key Features

• Solid carbide construction provides rigidity and wear resistance for tight-tolerance reaming
• Diameter tolerance of +0.0001 to +0.0004 inches ensures consistent finished bore sizing
• Straight flute design with right-hand cut for standard through-hole and blind-hole applications
• Straight shank compatible with standard drill chucks, collets, and reamer holders
• 6-flute configuration supports smooth cutting action and improved surface finish
• Uncoated carbide substrate suitable for use with appropriate cutting fluids for the workpiece material

Compatibility

Designed as a Series 272 solid carbide chucking reamer for use in standard machine tool setups accepting straight-shank tooling; the 0.4995-inch diameter corresponds to the 0.4995 dowel pin size designation.

Installation Notes

This reamer is installed and operated by machinists in lathe, drill press, or CNC machining center applications. Ensure the machine spindle and toolholder are free of chips and runout before mounting. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Never use a reamer to remove excessive stock; pre-drill or bore the hole to the recommended pre-ream diameter before finishing with this tool.