Sandvik Coromant 5729439 Boring Bar Reducing Adapter

Product Description

The SANDVIK COROMANT 5729439 is a boring bar reducing adapter designed to interface between toolholding systems and boring bar shanks of a smaller diameter. It allows machinists and tooling setups to use a narrower boring bar within a larger receiving bore, reducing the effective bore diameter of the toolholder. Built within the Coromant Capto series, this adapter is intended for use on CNC turning centers and machining cells where modular tooling systems are required. At 7.01 pounds, the adapter reflects the robust construction expected of precision metal-cutting tooling components.

This adapter is suited for production and job-shop environments running the Coromant Capto modular tooling platform. It is used when a smaller boring bar shank must be mounted securely within a larger Capto toolholder interface, enabling flexibility across multiple bore size applications without requiring a dedicated holder for each bar size. Installation is typically performed by a tooling setup technician or machinist during a tool change or new job setup on a CNC lathe or turning center.

Key Features

• Coromant Capto series compatibility for modular tooling system integration
• Reduces effective toolholder bore to accept smaller boring bar shanks
• Substantial 7.01-pound construction supports rigid, vibration-resistant tooling setups
• Sold individually as a single-unit package

Compatibility

Designed for use within the Coromant Capto modular tooling system as a boring bar reducing adapter. No additional specific compatible model numbers or replaced part numbers were provided in the available product data.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with modular CNC tooling systems. Ensure the machine spindle is fully stopped and the tool turret or tooling station is de-energized before mounting or removing the adapter. Follow the toolholder manufacturer guidelines for clamping torque and interface cleanliness to maintain runout accuracy. Inspect the Capto interface and adapter bore for debris or damage before assembly.