Sandvik Coromant 5730551 Turning Toolholder Dclnl Wedge

Product Description

The SANDVIK COROMANT 5730551 is a DCLNL-style indexable turning toolholder designed for negative-rake external turning and facing operations on CNC lathes and turning centers. The holder accepts CNMG 543 inserts secured by a wedge clamping method, which delivers rigid, repeatable insert location under interrupted and continuous cuts. The shank measures 1.25 x 1.25 inches with an overall length of 6 inches. Left-hand orientation and a -6-degree rake angle position this holder for specific setup requirements on the turret. The steel construction handles the mechanical loads common in production turning environments. Installation is performed by machinists and CNC tooling technicians.

This toolholder is suited for facing and turning applications in production and job-shop environments running CNC lathes with standard square-shank turret pockets. The DCLNL style positions the CNMG 543 insert at a lead angle appropriate for facing passes and longitudinal turning. The left-hand designation determines the tool approach direction and must be matched to the machine turret and workpiece setup. The wedge clamping system is common on production-style holders where secure insert retention under high feed rates is required.

Key Features

• DCLNL toolholder style with left-hand orientation for specific turret setups
• Wedge clamping method for rigid, repeatable CNMG 543 insert retention
• 1.25 x 1.25 inch square shank fits standard CNC lathe turret pockets
• 6-inch overall length with 1.54-inch head length for reach and clearance
• Negative rake at -6 degrees suits tough materials and interrupted cuts
• Steel construction for durability under production turning loads
• Multi-use designation supports both facing and longitudinal turning applications

Compatibility

Designed to accept CNMG 543 indexable inserts with a 0.625-inch inscribed circle. Fits CNC lathe turret pockets sized for a 1.25 x 1.25 inch square shank. Verify left-hand orientation and turret configuration before ordering.

Installation Notes

Installation is performed by a machinist or CNC tooling technician with the machine powered down and the turret fully locked out per facility lockout-tagout procedures. Confirm turret pocket dimensions and hand-of-holder orientation before mounting. Torque the wedge clamp fastener per the insert manufacturer specification using calibrated tooling — do not over-torque or use impact drivers. Inspect the insert seat and pocket bore for chips or debris before seating the holder.