Sandvik Coromant 5721450 Boring Bar Holder CAT40

Product Description

The SANDVIK COROMANT 5721450 is a boring bar holder designed for precision machining operations on CNC machining centers. It accepts a 1-1/4 inch bore diameter with a bore depth of 101.60 mm (approximately 4.00 inches) and connects to the spindle via a CAT40 taper interface. The body diameter measures 42.80 mm with a body length of 101.60 mm. Internal coolant delivery channels coolant directly to the cutting zone, improving chip evacuation and tool life during deep boring operations. This holder is installed by machining technicians and toolroom specialists working with modular boring systems.

This boring bar holder is suited for use on CAT40-equipped vertical and horizontal machining centers in production and job shop environments. The internal coolant feature makes it well suited for ferrous and non-ferrous boring applications where heat and chip buildup are concerns. Lock screw compatibility includes part numbers 5514 022-07, and the coolant screw compatibility is 3214 010-253. The manufacturer part number cross-reference for this holder is AA3B20-40 32 101.

Key Features

• 1-1/4 inch bore diameter for standard boring bar shank fitment
• 101.60 mm bore depth for extended reach boring applications
• CAT40 taper connection for compatibility with standard machining center spindles
• Internal coolant delivery for improved chip evacuation and tool life
• 42.80 mm body diameter with no-head style for clearance in tight bores
• Lock screw compatibility: 5514 022-07

Compatibility

Compatible lock screws: 5514 022-07. Compatible coolant screw: 3214 010-253. Cross-reference manufacturer part number: AA3B20-40 32 101. Designed for CAT40 spindle interfaces on standard CNC machining centers.

Installation Notes

Installation should be performed by a qualified machining technician familiar with modular tooling systems. Ensure the machine spindle is fully powered down and the tool magazine is in a safe state before mounting or removing the holder. Verify bore diameter and taper seat are clean and free of chips or burrs before seating the holder. Torque all lock screws to the tooling manufacturer specifications using calibrated tooling — do not overtighten.