Hertel MR34-0354.281 Chucking Reamer 0.9mm Solid Carbide

Product Description

The HERTEL MR34-0354.281 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. Built to a 0.9 mm diameter with a reamer diameter tolerance of 0.0000 to +0.0003 mm, this tool delivers consistent, accurate bore sizing where dimensional control is critical. The 4-flute spiral configuration with a left-hand spiral direction and right-hand cutting direction promotes smooth chip evacuation and reduces chatter during the cut. At 50 mm overall length with a 7 mm flute length and a straight cylindrical shank, it seats securely in standard collet and drill chuck setups. Machinists and tool-and-die professionals working with small-bore components will find this reamer well suited to production and precision repair work.

This reamer is intended for use in CNC machining centers, knee mills, and drill press applications where sub-millimeter bore sizing is required. It is appropriate for finishing operations in metals and other materials where a bright, uncoated carbide surface provides adequate performance. The straight cylindrical shank accommodates standard collet chucks and precision drill chucks commonly found in machine shops handling small-diameter work. This is a single-piece tool sold individually, making it practical for low-volume precision jobs or as a direct replacement in existing setups.

Key Features

• 0.9 mm reamer diameter with tolerance of 0.0000 to +0.0003 mm for precision bore finishing
• Solid carbide construction for rigidity and wear resistance in demanding cuts
• 4-flute spiral design with left-hand spiral and right-hand cut for controlled chip flow
• Bright uncoated finish suitable for general-purpose precision reaming
• Straight cylindrical shank for compatibility with standard collet and chuck systems
• Compact 50 mm overall length sized for small-bore and confined-space applications

Compatibility

Designed as a direct-fit chucking reamer for use in standard straight-shank collet chucks and precision drill chucks accepting 0.9 mm shank diameters in CNC and manual machine tool setups.

Installation Notes

Installation and use of this reamer should be performed by a qualified machinist familiar with small-diameter tooling. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Apply appropriate cutting fluid for the workpiece material to extend tool life and maintain bore quality. Avoid side-loading this tool, as small-diameter solid carbide reamers are brittle and susceptible to breakage under lateral force.