Hertel MR34-0315.281 Chucking Reamer 0.8mm Solid Carbide

Product Description

The HERTEL MR34-0315.281 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a 0.8 mm reamer diameter and a diameter tolerance of 0.0000 to +0.0003 mm, this tool delivers consistent bore sizing where accuracy is critical. The spiral flute geometry with left-hand spiral direction promotes smooth chip evacuation during right-hand cutting operations. At 50 mm overall length with a 7 mm flute length, this compact reamer is well suited for CNC machining centers, drill presses, and manual machine tools where a straight shank tool is required. Machinists and tooling specialists install this reamer in applications demanding repeatable, high-finish bore diameters in metal workpieces.

This reamer is used in precision metalworking environments including aerospace, automotive, medical device, and general manufacturing shops. Its bright, uncoated solid carbide construction makes it appropriate for reaming ferrous and non-ferrous materials where coating-related dimensional offsets must be avoided. The straight shank allows direct chuck mounting without an adapter, keeping setup straightforward on standard three-jaw or collet-style chucks. Applications typically involve finish-reaming pre-drilled or bored holes to final size in production or prototype runs.

Key Features

• 0.8 mm reamer diameter with a tolerance of 0.0000 to +0.0003 mm for tight bore control
• Solid carbide construction provides rigidity and wear resistance in demanding materials
• Spiral flute design with left-hand spiral promotes chip evacuation during right-hand cutting
• 4-flute configuration balances cutting load and surface finish quality
• Bright, uncoated finish eliminates coating buildup concerns in close-tolerance bores
• Straight shank mounts directly in standard chucks and collets without adapters

Compatibility

Designed as an OEM-style chucking reamer for use in CNC machining centers, drill presses, and manual machine tools equipped with standard straight-shank toolholders or collet chucks accepting small-diameter tools.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before loading or removing the reamer. Secure the straight shank firmly in a collet or chuck to minimize runout, as even slight tool runout at this diameter can push bore dimensions out of tolerance. Follow the machine manufacturer and applicable shop safety guidelines for speeds, feeds, and cutting fluid selection when reaming small-diameter holes in metal.