M.a. Ford 27220100 Chucking Reamer No. 7 Solid Carbide

Product Description

The M.A. FORD 27220100 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. Ground to a No. 7 wire size diameter of 0.2010 inches, this reamer holds a tight tolerance of +0.0001 to +0.0003 inches, making it suitable for close-tolerance bore work. The 4-flute straight flute geometry and right-hand cut deliver consistent chip evacuation and surface finish in through-hole and short blind-hole applications. Overall length is 3.0 inches with a 1-inch flute length. The straight shank mounts directly in drill chucks, collets, or floating holders on CNC machining centers, manual mills, and drill presses.

This reamer is used in production and maintenance machining environments where hole size accuracy and finish quality are critical. Typical applications include finishing drilled or bored holes in ferrous and non-ferrous metals, tool steels, and similar machinable materials. The solid carbide construction supports use in harder workpiece materials and at higher cutting speeds compared to high-speed steel equivalents. It is sized for the 0.2000 to 0.2499 inch diameter range, specifically ground to the 0.2010 inch No. 7 wire dimension. Machinists, toolroom technicians, and CNC operators are the primary installers and users of this tool.

Key Features

• No. 7 wire size diameter ground to 0.2010 inches with a tolerance of +0.0001 to +0.0003 inches
• Solid carbide construction for wear resistance and dimensional stability in harder materials
• 4-flute straight flute geometry for consistent finish and chip flow in through-hole applications
• Right-hand cut and right-hand spiral direction for standard machine spindle use
• Straight shank for direct mounting in chucks, collets, or floating holders
• Uncoated finish — ready to run without additional surface treatment considerations

Compatibility

Designed as an OEM-style solid carbide chucking reamer for use in drill chucks, precision collets, or floating reamer holders on CNC machining centers, knee mills, and drill presses capable of accepting a straight shank tool in the 0.2010 inch diameter range.

Installation Notes

Installation and operation should be performed by qualified machinists or toolroom technicians familiar with reaming procedures and machine tool safety. Secure the straight shank in a precision collet or floating holder to minimize runout before operation; excessive runout will degrade hole tolerance and tool life. Ensure the machine spindle is fully stopped before inserting or removing the tool. Follow applicable shop safety standards and machine manufacturer guidelines for speeds and feeds when running solid carbide tooling.