Sandvik Coromant 5722917 Boring Bar Modular Adapter

Product Description

The SANDVIK COROMANT 5722917 is a boring bar modular adapter designed for precision internal turning and boring operations on CNC machining centers and lathes. This adapter features a 1.2598-inch (32 mm) bore diameter and a bore depth of 3.7402 inches (95 mm), making it suitable for moderate-depth internal work. A screw thread lock with a lock screw size of 9.06 decimal inches secures the connection, and integrated internal coolant delivery channels coolant directly to the cutting zone. Machinists and tooling engineers install this adapter as part of a modular boring system to extend reach or convert between toolholder interfaces without changing the base unit.

This modular adapter is used in production and job-shop environments where interchangeable tooling systems are required for internal boring applications. It fits into modular boring bar assemblies where a 1.25-inch connection size interface is specified. The body diameter is 1.25 inches (1-1/4 inch nominal) with a body length of 8.74 inches (222 mm). Internal coolant compatibility makes it well suited for deep-bore operations in ferrous and non-ferrous materials where chip evacuation and heat management at the cutting edge are priorities.

Key Features

• 1.2598-inch (32 mm) bore diameter for precise modular adapter fitment
• Bore depth of 3.7402 inches (95 mm) supports moderate-depth internal boring
• Internal coolant delivery channels fluid directly to the cutting zone
• Screw thread lock mechanism secures adapter in the modular system
• Body length of 8.74 inches (222 mm) provides extended reach capability
• Compatible with lock screw part number 5758578 per manufacturer data

Compatibility

This adapter is identified in manufacturer data as associated with the base part number A570-2C D20 09-32 and uses lock screw 5758578. It is designed for use within SANDVIK COROMANT modular boring bar systems requiring a 1.25-inch connection size interface.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked before handling the adapter. Ensure the mating surfaces are clean and free of chips or debris before assembly to maintain concentricity. Torque the lock screw per the tooling system documentation supplied by the manufacturer. Verify internal coolant port alignment with the machine spindle coolant supply before operation.