M.a. Ford. 27204720 Chucking Reamer 1.20mm Solid Carbide

Product Description

The M.A. FORD. 27204720 is a solid carbide chucking reamer designed to finish-ream precision holes to close tolerances in metalworking and machining applications. The tool measures 1.20mm in diameter with an overall length of 38.00mm (approximately 1.5 inches) and a flute length of 9.50mm (approximately 0.374 inches). It features four straight flutes in a right-hand cutting direction and carries a bright, uncoated finish. The straight-cylindrical shank seats directly in standard drill chucks or collet holders. Machinists and toolroom technicians use this reamer to bring drilled or bored holes to final size with consistent surface finish and dimensional accuracy.

This reamer is suited for precision hole finishing in light metals, steel, and other machinable materials where tight diameter tolerances are required. The 1.20mm diameter and compact overall length make it appropriate for small-bore work on CNC machining centers, manual mills, and drill presses. The Series 272 designation places it within M.A. FORD.'s line of miniature solid carbide reamers. The diameter tolerance of plus 0.004 to plus 0.008mm classifies this as a slight over-size reamer, which accounts for material spring-back in typical reaming operations.

Key Features

• Solid carbide construction provides rigidity and wear resistance for consistent performance in small-diameter reaming
• Four straight flutes with right-hand cutting direction for standard through-hole and blind-hole finishing
• 1.20mm reamer diameter with a tolerance of plus 0.004 to plus 0.008mm for controlled oversize finishing
• Bright, uncoated finish suitable for use with cutting fluids in a wide range of materials
• Straight-cylindrical shank for direct clamping in drill chucks or ER collet systems
• Series 272 compact geometry, 38.00mm overall length, for close-quarters small-bore applications

Compatibility

Designed as a Series 272 solid carbide chucking reamer intended for use in standard straight-shank tool holders, drill chucks, and collet systems capable of accepting a straight-cylindrical shank at this miniature diameter range.

Installation Notes

Installation and use of this reamer should be performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Secure the straight-cylindrical shank with adequate clamping force to prevent pullout during cutting. Apply an appropriate cutting fluid for the workpiece material to extend tool life and achieve optimal surface finish; do not run dry unless the material and application specifically permit it.