Sandvik Coromant 5732678 Dvjnl Turning Toolholder 3/4 in

Product Description

The SANDVIK COROMANT 5732678 is a left-hand indexable turning toolholder in the DVJNL style, designed for facing operations on CNC lathes and turning centers. It uses a wedge clamping method to secure VNMG 332 inserts with a negative rake angle of -4 degrees, providing rigid, repeatable insert positioning under heavy cutting loads. The shank measures 3/4 x 3/4 inches (19.05 x 19.05 mm), and the overall length is 4.5 inches. The toolholder body is constructed from steel. Licensed machinists, CNC operators, and toolroom technicians specify this holder for precision turning setups where consistent tool geometry and secure insert retention are critical.

This toolholder is suited for facing applications on conventional and CNC turning equipment. The DVJNL style designates a left-hand cutting direction with a 93-degree lead angle, making it appropriate for straight turning and facing passes where workpiece approach and clearance constraints favor left-hand orientation. The wedge clamping system is a production-proven method used across high-volume turning cells as well as job shop environments. The 3/4 x 3/4 inch shank fits standard tool blocks and turrets sized for that shank cross-section. The multi-use designation indicates suitability across a range of workpiece materials when paired with the appropriate VNMG 332 insert grade.

Key Features

• DVJNL style left-hand toolholder for facing operations
• Wedge insert clamping method for rigid, repeatable VNMG 332 insert retention
• Negative rake geometry at -4 degrees rake angle
• 3/4 x 3/4 inch (19.05 x 19.05 mm) shank for standard turret and tool block fitment
• 4.5 inch overall length with 1.83 inch head length
• Steel construction for durability in production turning environments

Compatibility

Designed to accept VNMG 332 inserts with a 3/8 inch inscribed circle. Fits standard tool blocks and turrets with a 3/4 x 3/4 inch shank bore. Verify turret or block orientation requirements before installation to confirm left-hand designation suits the intended cutting direction.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine spindle and turret before seating or removing the toolholder. Confirm the wedge clamp screw and insert seat are clean and free of chips before seating the VNMG 332 insert. Follow the machine tool manufacturer's torque recommendations for wedge clamp screws — do not exceed specified values to avoid insert or seat damage.