M.a. Ford. 27212750 Chucking Reamer 0.1275 in Solid Carbide

Product Description

The M.A. FORD. 27212750 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.1275 inches and a diameter tolerance of +0.0001/+0.0003 inches, this tool delivers tight, repeatable hole sizes suited to close-tolerance work. The straight flute geometry and right-hand cutting direction make it appropriate for use in through-holes and blind-hole finishing where chip evacuation is manageable. Machinists and tool-and-die professionals install this reamer in CNC machining centers, drill presses, and manual lathes equipped with a chuck or collet holder.

This reamer is used in job shops, production machining environments, and maintenance repair operations where consistent bore sizing is required. Its solid carbide construction handles harder workpiece materials and provides longer tool life compared to high-speed steel alternatives. The straight shank allows direct mounting in standard drill chucks and collet systems without adapters. Typical applications include bearing bore finishing, pin-fit holes, and precision assembly locations requiring H7 or tighter tolerances.

Key Features

• Solid carbide construction for extended tool life and rigidity in hard materials
• Reamer diameter of 0.1275 inches with a tolerance of +0.0001/+0.0003 inches for close-tolerance hole finishing
• Straight flute, right-hand cut geometry suitable for through-holes and stable chip control
• 4-flute configuration for smooth surface finish and balanced cutting forces
• Straight shank for direct chuck or collet mounting without adapters
• Uncoated carbide substrate — compatible with cutting fluid application for ferrous and non-ferrous materials

Compatibility

Designed as an OEM-style solid carbide chucking reamer for use in standard drill chucks and collet holders accepting a straight shank; suited for CNC machining centers, drill presses, and manual lathes requiring a 0.1275-inch finished bore diameter.

Installation Notes

This reamer is installed and operated by machinists and toolroom professionals. Secure the straight shank firmly in a drill chuck or precision collet before use, and verify runout with an indicator before beginning a reaming pass. Always ream at reduced spindle speeds compared to drilling, and apply appropriate cutting fluid to extend tool life and achieve the specified surface finish. Do not use this tool to remove large amounts of stock — pre-drill or bore the hole to within 0.003 to 0.005 inches of finished diameter before reaming.