Sandvik Coromant 5729344 Boring Bar Modular Adapter

Product Description

The SANDVIK COROMANT 5729344 is a boring bar modular adapter designed for precision internal machining operations. This adapter features a 1.2598-inch (32 mm) bore diameter and a bore depth of 3.937 inches (100 mm), making it suited for deep-bore applications requiring stable tooling connections. The body diameter measures 2.4803 inches (63 mm), and the adapter uses a screw thread lock mechanism for secure tool retention. Internal coolant delivery channels allow cutting fluid to reach the cutting zone directly, supporting heat management and chip evacuation during extended boring cycles. This component is installed by machinists and tooling specialists in CNC turning or milling environments.

This modular adapter is intended for use in industrial machining setups where a C6 connection interface is required. It accommodates a lock screw sized at 4.08 inches, compatible with lock screw part 3212 010-308. The adapter is well suited to production-floor environments running high-precision internal diameter work on lathes or machining centers where modular tooling systems are used to reduce changeover time and maintain repeatable tool positioning. Both job shop and high-volume production environments benefit from the rigid connection this adapter provides at depth.

Key Features

• 1.2598-inch (32 mm) bore diameter for precise internal tooling fit
• 3.937-inch (100 mm) bore depth supports deep-bore machining applications
• C6 modular connection size for compatibility with standard modular tooling systems
• Internal coolant delivery for effective heat management and chip evacuation
• Screw thread lock mechanism with 4.08-inch lock screw for secure, repeatable clamping
• 2.4803-inch (63 mm) body diameter provides rigid support in the tool stack

Compatibility

This adapter uses a C6 connection interface and is compatible with lock screw part number 3212 010-308. The manufacturer internal part reference is C6-570-32-RX-045-L1.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with modular boring bar systems. The machine spindle must be fully stopped and the tooling system depressurized before mounting or removing the adapter. Confirm that the C6 interface surfaces are clean and free of chips or burrs before assembly to ensure full seating and accurate runout. Follow the tooling manufacturer guidelines for lock screw torque and coolant connection integrity before resuming cutting operations.