Hertel MR34-0106.059 Chucking Reamer 0.27mm Solid Carbide

Product Description

The HERTEL MR34-0106.059 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance applications. With a reamer diameter of 0.27 mm (0.0106 inches decimal), it produces accurate bores in the 0.00 to 1.00 mm diameter range class. The spiral flute geometry with left-hand spiral direction and right-hand cutting action promotes smooth chip evacuation and reduces chatter during the cut. A bright polished finish minimizes friction and helps maintain surface finish quality. This reamer is sized for use in CNC machining centers, drill presses, and precision lathes where sub-millimeter hole tolerances are required.

This chucking reamer is suited for precision machining environments including aerospace, medical device, electronics, and fine instrument manufacturing where extremely small bore diameters must meet tight dimensional tolerances. The straight shank allows direct mounting in standard collet chucks or drill chucks compatible with the shank diameter. With a 50 mm overall length and a 1.5 mm flute length, this tool is optimized for short-depth reaming operations in small-diameter features. It is typically installed and operated by machinists and tool-and-die professionals working with CNC or manual machine tools.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-diameter precision reaming
• 0.27 mm reamer diameter with tolerance of 0.0000 to +0.0003 mm for tight bore accuracy
• Left-hand spiral flute with right-hand cutting direction for effective chip management
• Bright polished coating reduces friction and supports superior surface finish
• 4-flute design provides stable cutting action and consistent roundness
• Straight shank for compatibility with standard collet and drill chuck tooling

Compatibility

Designed as an OEM-style precision reamer for use in standard straight-shank collet chucks and drill chucks sized to accept the shank diameter of this tool on CNC machining centers, drill presses, and lathes.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with precision reaming procedures. Ensure the spindle is fully stopped and the machine is powered down before mounting or removing the tool from the chuck. Verify collet or chuck runout is within acceptable limits before use, as excess runout at this diameter range will directly affect bore tolerance and tool life. Follow applicable shop safety standards and machine manufacturer guidelines for small-diameter carbide tooling.