Hertel MR34-0705.406 Chucking Reamer 1.79mm Solid Carbide

Product Description

The HERTEL MR34-0705.406 is a solid carbide chucking reamer designed to finish-ream precision holes to a diameter of 1.79 mm (0.0705 inches). Featuring a left-hand spiral flute geometry with a right-hand cutting direction, it evacuates chips efficiently while maintaining accurate bore geometry. The bright, uncoated carbide construction provides rigidity and dimensional stability in small-diameter applications. With four flutes and a 10 mm flute length, this reamer delivers consistent surface finish and tight diameter tolerance of 0.0000 to +0.0003 mm. It is sized for use in CNC machining centers, drill presses, and precision lathes equipped with standard straight-shank toolholders.

This chucking reamer is suited for precision metalworking applications requiring controlled hole finishing in the 1.00 mm to 2.00 mm diameter range. Its 50 mm overall length and straight shank make it compatible with collet chucks and standard drill chucks commonly used in production and tool-room environments. It is appropriate for machinists and toolmakers working on tight-tolerance bores in ferrous and non-ferrous materials where dimensional accuracy is critical.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-diameter reaming
• Left-hand spiral flute with right-hand cut for effective chip evacuation
• Diameter tolerance of 0.0000 to +0.0003 mm for precision bore finishing
• Four flutes provide consistent finish and stable cutting action
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Straight shank fits standard collet and drill chuck toolholders

Compatibility

Designed as an OEM-style solid carbide chucking reamer for straight-shank toolholders; fits applications within the 1.00 mm to 2.00 mm reamer diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist. Secure the straight shank firmly in a collet chuck or drill chuck before operation, and confirm runout is within acceptable limits for the tolerance class required. Ensure the machine spindle is at a complete stop before loading or removing the reamer. Do not use this tool for drilling; it is intended solely for finish-reaming pre-drilled or bored holes.