Hertel MR34-0185.099 Chucking Reamer 0.47mm Solid Carbide

Product Description

The HERTEL MR34-0185.099 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a reamer diameter of 0.47mm (0.0185 decimal inch) and a diameter tolerance of 0.0000 to +0.0003mm, this tool is built for machinists who need consistent, accurate bore sizing in small-diameter work. The 4-flute, left-hand spiral geometry with right-hand cutting direction provides smooth chip evacuation and a clean finish. Overall length is 50.00mm (1.969 inches) with a 2.50mm flute length. The bright, uncoated carbide construction suits a range of ferrous and non-ferrous workpiece materials.

This chucking reamer is used in precision CNC and manual machining environments where small-diameter bores require tight dimensional control. The straight-cylindrical shank seats directly in a collet or drill chuck, making it compatible with standard machine tool setups. Typical applications include finish reaming of pin holes, instrument components, medical device parts, and other small-bore workpieces where hole location and diameter accuracy are critical. It is installed and operated by machinists and toolroom professionals.

Key Features

• 0.47mm (0.0185 inch) reamer diameter with tolerance of 0.0000 to +0.0003mm for precise bore sizing
• Solid carbide construction for rigidity and wear resistance in small-diameter reaming
• 4-flute, left-hand spiral geometry with right-hand cutting direction promotes smooth chip flow
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Straight-cylindrical shank for direct collet or drill chuck mounting
• 50.00mm overall length with 2.50mm flute length for controlled engagement in shallow bores

Compatibility

Designed as an OEM-style precision chucking reamer for use in CNC machining centers, lathes, and manual drill presses equipped with collet or drill chuck toolholding systems accepting a straight-cylindrical shank in the sub-1mm diameter range.

Installation Notes

Installation should be performed by a qualified machinist. Secure the straight-cylindrical shank firmly in a precision collet or drill chuck, ensuring minimal runout before operation, as runout at this diameter range will directly affect bore accuracy and tool life. Always bring the spindle to a complete stop before changing or inspecting the reamer. Follow shop-standard speeds and feeds for carbide tooling at this diameter, and avoid side loading the tool, as the small diameter makes it susceptible to breakage under lateral force.