Hertel MR34-0488.406 Chucking Reamer 1.24mm Solid Carbide

Product Description

The HERTEL MR34-0488.406 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a 1.24 mm reamer diameter and a diameter tolerance of 0.0000 to +0.0003 mm, this tool delivers consistent, accurate results where bore size control is critical. The spiral flute geometry with left-hand spiral direction and right-hand cutting direction reduces chatter and promotes smooth chip evacuation. A bright polished finish minimizes friction and helps extend tool life. This reamer is suited for machinists and toolroom professionals working with CNC machining centers, drill presses, or similar equipment requiring small-diameter precision reamers.

This chucking reamer is intended for small-bore finishing operations in production and toolroom environments. The straight shank allows direct mounting in standard drill chucks, collet chucks, or floating reamer holders. With a 50 mm overall length and a 10 mm flute length, it is well suited for shallow-bore finishing in metals and similar materials. The compact geometry makes it a practical choice for close-clearance setups where tool reach and runout control matter.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision boring operations
• 1.24 mm reamer diameter with tolerance of 0.0000 to +0.0003 mm for tight bore control
• Left-hand spiral flute with right-hand cut reduces chatter and improves chip flow
• Bright polished finish lowers cutting friction and supports tool longevity
• 4 flutes provide a balance of cutting performance and surface finish quality
• Straight shank compatible with standard chucking systems and collet holders

Compatibility

Designed as an OEM-style chucking reamer for use in standard straight-shank tool holders and collet systems suited to small-diameter precision reaming applications.

Installation Notes

Installation and operation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle and chuck are fully stopped and de-energized before mounting or removing the reamer. Secure the straight shank firmly in a matched collet or drill chuck to minimize runout. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when operating carbide tooling at elevated speeds.