Hertel MR34-0614.406 Chucking Reamer 0.0614 in Carbide

Product Description

The HERTEL MR34-0614.406 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a reamer diameter of 0.0614 inches (1.56 mm) and a diameter tolerance of 0.0000 to +0.0003 mm, this tool delivers accurate, repeatable results in production and toolroom environments. The four-flute, left-hand spiral geometry with right-hand cutting direction promotes smooth chip evacuation and reduces chatter at small bore diameters. A bright (polished) coating minimizes built-up edge and aids surface finish. Machinists and tool-and-die professionals install this reamer in CNC machining centers, drill presses, and manual lathes using standard drill chucks or collet holders.

This reamer is suited for finishing small-diameter bores in ferrous and non-ferrous materials where dimensional accuracy is critical. At 1.9685 inches overall length with a 0.7087-inch flute length, it is sized for shallow through-holes and blind holes in precision components such as hydraulic valve bodies, instrument housings, and fixture plates. The straight shank allows direct chucking in standard collets and drill chucks without adapters.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-diameter reaming
• Four left-hand spiral flutes with right-hand cutting for smooth chip flow
• Diameter tolerance of 0.0000 to +0.0003 mm for tight-tolerance bore finishing
• Bright (polished) finish reduces friction and built-up edge
• Straight shank for direct mounting in collets or drill chucks
• Compact 1.9685-inch OAL suitable for close-clearance setups

Compatibility

Designed as an OEM-style chucking reamer for use in CNC machining centers, drill presses, and manual lathes equipped with standard collet chucks or drill chucks accepting a straight shank in the 0.0500 to 0.0999-inch reamer diameter range.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with small-diameter reaming operations. Ensure the spindle and workpiece are properly secured and that all machine guards are in place before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish. Inspect the reamer for chipping or wear before each use, as solid carbide tools at this diameter are brittle and sensitive to side loading.