Sandvik Coromant 5731051 DDJNR123C Turning Toolholder

Product Description

The SANDVIK COROMANT 5731051 is a right-hand indexable turning toolholder in the DDJNR style, designed for use with DNMG 332 inserts secured by a wedge clamping method. The toolholder features a 3/4 inch square shank (0.7500 inches wide by 0.7500 inches tall) and an overall length of 5 inches. Constructed from steel, it applies a negative rake angle of -6 degrees, which suits interrupted cuts and harder workpiece materials. Licensed machinists and CNC turning center operators install this holder on manual and CNC lathes for facing operations where consistent insert seating and repeatable cutting geometry are required.

This toolholder is suited for facing applications on CNC and manual turning centers in production and job-shop environments. The DDJNR style positions the DNMG 332 insert at a lead angle appropriate for shoulder facing and general external turning. The wedge clamping system locks the insert securely, reducing micro-movement during interrupted or heavy cuts. Its multi-use designation means it can be adapted across a range of turning scenarios where DNMG 332 geometry is the specified insert.

Key Features

• DDJNR toolholder style with right-hand cutting orientation
• Wedge insert clamping method for rigid, repeatable insert seating
• Compatible with DNMG 332 inserts, 3/8 inch inscribed circle
• Negative rake (-6 degrees) suited for hard and interrupted-cut applications
• Steel construction for durability in production turning environments
• Multi-use designation supports facing and general external turning

Compatibility

Designed for use with DNMG 332 inserts (3/8 inch inscribed circle, 3/8 inch insert width). Fits standard DDJNR-style tool blocks and turret positions accepting a 3/4 inch square shank on CNC and manual lathes configured for right-hand external turning.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine before loading or changing toolholder and insert. Secure the shank in the turret or tool block per machine manufacturer torque guidelines using appropriate hex keys. Inspect the insert pocket and wedge clamp for chips or debris before seating a new DNMG 332 insert to ensure proper clamping force and cutting geometry.