Hertel MR34-0508.406 Chucking Reamer 0.0508 in Carbide

Product Description

The HERTEL MR34-0508.406 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a reamer diameter of 0.0508 inches (1.29 mm) and a diameter tolerance of 0.0000 to +0.0003 mm, this tool is built for applications where dimensional accuracy is critical. The bright polished finish reduces friction and aids chip evacuation. At 1.9685 inches overall length with a 0.7087-inch flute length, this compact reamer fits standard chucking setups used by machinists across production and toolroom environments.

This reamer is suited for finish-reaming small-diameter holes in ferrous and non-ferrous materials where carbide hardness and wear resistance outperform high-speed steel alternatives. The straight shank allows direct mounting in drill chucks, collet chucks, or floating reamer holders on CNC machining centers, lathes, or drill presses. Right-hand cutting direction with left-hand spiral flutes provides a controlled, chatter-resistant cut that leaves a clean bore surface. Typical applications include precision instrument components, medical device parts, and small mechanical assemblies requiring close hole tolerances.

Key Features

• Solid carbide construction for superior wear resistance and tool life in hard or abrasive materials
• 0.0508-inch diameter with tight tolerance of 0.0000 to +0.0003 mm for precise hole finishing
• Left-hand spiral flutes with right-hand cutting direction reduce chatter and improve surface finish
• Bright polished coating minimizes friction and assists chip flow during reaming
• Straight shank compatible with standard drill chucks and collet holders
• 4-flute geometry balances cutting force distribution across the bore wall

Compatibility

Designed as an OEM-style chucking reamer for use in standard straight-shank tool holders on CNC machining centers, manual lathes, and drill presses requiring a 0.0508-inch nominal bore diameter.

Installation Notes

Installation and use should be performed by qualified machinists familiar with precision reaming operations. Secure the straight shank firmly in a collet chuck or drill chuck and verify runout before cutting to protect the tight diameter tolerance. Always apply appropriate cutting fluid for the workpiece material to extend tool life and achieve target surface finish. Inspect the reamer for chipping or wear before each use, as carbide tools can fail suddenly if run past service life or subjected to interrupted cuts without proper feed rates.