Hertel MR34-0464.406 Chucking Reamer 0.0465 in Carbide

Product Description

The HERTEL MR34-0464.406 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.0465 inches (Wire Size #56) and a tight diameter tolerance of 0.0000 to +0.0003 inches, this tool delivers accurate, repeatable bore sizing in production and maintenance environments. The 4-flute, left-hand spiral geometry with right-hand cutting direction promotes smooth chip evacuation and a bright polished finish reduces friction during the cut. Overall length is 1.9685 inches with a flute length of 0.7087 inches. Machinists and toolroom professionals install this reamer in CNC machining centers and manual lathes or drill presses using a standard straight shank chuck.

This chucking reamer is suited for finishing small-diameter through holes and blind holes in steel, aluminum, brass, and similar materials where close tolerances are required. The solid carbide construction makes it appropriate for harder workpiece materials and higher-speed applications where high-speed steel tooling would wear prematurely. Typical applications include jig and fixture work, precision component manufacturing, and repair or rework of tight-tolerance bores in industrial settings.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• 0.0465 inch diameter corresponding to Wire Size #56 for precise small-bore finishing
• Diameter tolerance of 0.0000 to +0.0003 inches ensures consistent, repeatable sizing
• 4-flute left-hand spiral with right-hand cutting direction for smooth chip flow
• Bright (polished) coating reduces built-up edge and friction at the cutting edge
• Straight shank for direct chuck mounting without adapters

Compatibility

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

Installation Notes

Installation and use of this reamer should be performed by a qualified machinist. Ensure the machine spindle and chuck are clean and in good condition before mounting the reamer to avoid runout that could compromise tolerance. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality. Do not use this reamer to remove excessive stock — pre-drill or bore the hole to within the recommended finishing allowance before reaming.