M.a. Ford. 27203940 Chucking Reamer 1mm Solid Carbide

Product Description

The M.A. FORD. 27203940 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a 1 mm (0.0394 inch) diameter and a 4-flute straight configuration, it delivers consistent, accurate results in close-tolerance bores. The straight shank allows direct mounting in standard chuck holders. At 1-1/2 inches overall length with a 1/4-inch flute length, this compact reamer suits small-diameter work where rigidity and concentricity are critical. The uncoated solid carbide construction handles hard and abrasive workpiece materials where high-speed steel tooling falls short. Machinists and tool-and-die professionals are the primary users.

This reamer is suited for precision hole sizing in production machining, mold and die work, and instrument manufacturing where 1 mm bores require tight dimensional control. The right-hand spiral direction and right-hand cutting geometry are standard for conventional CNC and manual machine tool setups. Typical applications include finishing pre-drilled or bored holes to achieve H7 or similarly close fits in steel, aluminum, brass, and other machinable materials. No coolant-through capability means it is best applied with external flood or mist coolant delivery where chip evacuation allows.

Key Features

• 1 mm (0.0394 inch) diameter with tolerance of +0.004/+0.008 mm for precise hole sizing
• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• 4-flute straight configuration promotes smooth cutting action and consistent surface finish
• Right-hand cut, right-hand spiral geometry compatible with standard CNC and manual setups
• Straight shank fits standard chuck holders without special tooling adapters
• Uncoated finish suitable for applications where coating compatibility with workpiece material is a concern

Compatibility

Designed as an OEM-style precision chucking reamer for use in standard straight-shank chuck holders on CNC machining centers, drill presses, and manual mills or lathes configured for small-diameter reaming operations.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Secure the straight shank firmly in a precision collet or drill chuck and verify runout before operation. Power down the machine spindle completely before changing or setting tooling. Apply adequate external coolant or cutting fluid during operation to manage chip evacuation and tool temperature, as this reamer does not support coolant-through delivery.