Sandvik Coromant 5731066 Indexable Turning Toolholder

Product Description

The SANDVIK COROMANT 5731066 is a right-hand indexable turning toolholder in the DDJNR style, designed for use with DNMG 432 inserts secured by a wedge clamping method. The toolholder features a 1 x 1 inch square shank and an overall length of 6 inches, making it a standard-size choice for facing operations on CNC lathes and manual turning centers. It carries a negative rake angle of -6 degrees, which suits the geometry of DNMG-series inserts and promotes stable cutting forces during interrupted or continuous cuts. The steel construction provides the rigidity required for consistent insert indexing and repeatable tool life. Weighing 1.71 pounds, it fits standard toolpost and turret setups without special adapters in most cases.

This toolholder is intended for facing applications in production turning environments, including both job shops and high-volume machining cells. It is compatible with DNMG 432 inserts with a 0.5 inch inscribed circle. The multi-use designation means it can be applied across a range of workpiece materials when paired with the appropriate DNMG insert grade. Machinists and CNC lathe operators working with steel, cast iron, and similar materials will find this holder a direct fit for standard OD turning and facing passes. The head length measures 1.55 inches, and the back-of-bar to cutting edge distance is 6 inches.

Key Features

• DDJNR toolholder style with right-hand cutting orientation
• Wedge clamping method secures DNMG 432 inserts for rigid, repeatable positioning
• Negative rake angle of -6 degrees suits DNMG insert geometry for facing and turning
• 1 x 1 inch square shank fits standard lathe turrets and toolposts
• Steel construction provides high rigidity for interrupted and continuous cuts
• Multi-use designation supports a range of turning and facing applications

Compatibility

Designed for use with DNMG 432 inserts with a 0.5 inch inscribed circle. Fits standard lathe turrets and toolposts accepting a 1 x 1 inch square shank.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and in a locked-out state per applicable lockout/tagout procedures. Ensure the insert pocket and clamping wedge are clean and free of chips before seating a new DNMG 432 insert. Do not exceed the insert manufacturer's recommended cutting parameters for the insert grade selected. Torque the wedge clamp screw according to the insert manufacturer's specification found in the tooling documentation supplied with the insert.