Iscar 5140145 Modular Reamer Head 3/4 in Tialn Left Hand

Product Description

The ISCAR 5140145 is a modular reamer head designed for precision hole finishing in metal cutting applications. It features a helical flute geometry and a left-hand cutting direction, making it suitable for specific reaming setups that require counter-rotation or specialized chip evacuation. The head diameter is 0.7500 inches with a head length of 0.4090 inches. A Titanium Aluminum Nitride (TiAlN) coating is applied to the cutting surfaces, improving wear resistance and performance at elevated temperatures. This head is manufactured to ISO 13399 standards and carries an h7 hole tolerance designation, indicating a close-fit finish consistent with precision bore requirements. It is installed by machinists and tool-and-die professionals working with modular tooling systems.

This reamer head is intended for use in CNC machining centers, vertical mills, and other machine tool platforms that accept compatible modular reamer body systems. The h7 tolerance class suits applications requiring tight dimensional control on reamed bores, such as bearing seats, bushings, and close-clearance fits. Left-hand cut configuration addresses specific workpiece or machine rotation requirements. The TiAlN coating supports use in ferrous and hardened materials where heat generation at the cutting edge is a concern. Installation and use are appropriate for production machining and precision job-shop environments.

Key Features

• Helical flute geometry for improved chip flow during reaming
• Left-hand cutting direction for counter-rotation applications
• TiAlN coating enhances wear resistance and thermal stability
• h7 hole tolerance for precision bore finishing
• Manufactured to ISO 13399 tooling data standards
• Modular design for use with compatible reamer body systems

Compatibility

Designed as a modular replacement reamer head for use with compatible ISCAR modular reamer body systems accepting a 3/4 inch head diameter interface. Verify body connection type and coupling system before ordering.

Installation Notes

Installation should be performed by a qualified machinist familiar with modular cutting tool systems. Ensure the reamer body and machine spindle are fully de-energized and locked out before mounting or removing the head. Follow the tool manufacturer's torque and coupling procedures for the specific modular interface. Confirm cutting direction matches spindle rotation before commencing the reaming operation.