Hertel 79889549 Chucking Reamer 0.14 in Solid Carbide

Product Description

The HERTEL 79889549 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.14 inches and a tight diameter tolerance of 0.0000 to 0.0002 inches, this tool delivers consistent, accurate bore sizing in production and job-shop environments. The 4-flute straight configuration and bright uncoated finish make it suited for a range of ferrous and non-ferrous materials. At 2.5 inches overall length with a 0.75-inch flute length, this compact reamer fits standard drill press and CNC machining center setups. Machinists and tool-and-die tradespeople are the primary users of this style of reamer.

This chucking reamer is used in drilling and boring operations where hole tolerance and surface finish are critical. The straight cylindrical shank allows it to seat directly in drill chucks, collet chucks, or floating reamer holders on machining centers, manual mills, and drill presses. It is well suited for finishing through-holes and blind holes in precision components where nominal 0.14-inch bore diameter must be held to close tolerances. The right-hand cutting direction is standard for conventional clockwise spindle rotation.

Key Features

• Solid carbide construction provides rigidity and wear resistance for consistent hole geometry over extended runs
• 4-flute straight design delivers controlled chip evacuation and smooth bore finish
• Diameter tolerance of 0.0000 to 0.0002 inches supports tight-tolerance bore finishing
• Bright uncoated finish suitable for use with a wide range of cutting fluids and workpiece materials
• Straight cylindrical shank seats securely in standard drill chucks and collet holders
• Right-hand cut matches conventional spindle rotation on most machine tools

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks and collet-style toolholders on machining centers, drill presses, and manual mills where a straight cylindrical shank is required.

Installation Notes

A licensed machinist or toolroom professional should install and operate this reamer. Always confirm spindle is fully stopped and machine is powered down before changing tooling. Seat the shank fully and securely in the chuck or collet before operation, and verify runout with a dial indicator when tight tolerances are required. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality.