Sandvik Coromant 5730807 DCLNR164C Turning Toolholder

Product Description

The SANDVIK COROMANT 5730807 is a right-hand indexable turning toolholder in the DCLNR164C style, designed for external turning and facing operations on CNC lathes and manual turning centers. It uses a wedge clamping method to secure CNMG 432 negative-rake inserts at a rake angle of -6 degrees, providing rigid, repeatable insert positioning under heavy cutting loads. The shank measures 1 inch wide by 1 inch high, and the overall length is 5 inches. Built from steel, this toolholder is suited for production environments where consistent tool life and insert indexing accuracy are required. Licensed machinists and CNC operators are the primary installers.

This toolholder is configured for facing applications where the cutting edge must be presented at a controlled lead angle to the workpiece. The DCLNR style positions the insert for right-hand cutting with negative rake, making it well-suited for steel, cast iron, and other ferrous materials in roughing and semi-finishing passes. The 1-inch square shank fits standard OD turning tool blocks and quick-change toolpost holders commonly found on engine lathes and turning centers in job shops and production facilities.

Key Features

• Wedge clamping method for secure, repeatable CNMG 432 insert retention
• Right-hand cut orientation (DCLNR style) for standard external turning and facing
• Negative rake geometry at -6 degrees suits interrupted cuts and hard materials
• 1 inch by 1 inch square shank fits common OD tool blocks
• 5 inch overall length provides clearance in most turret and toolpost setups
• Steel construction for rigidity and durability in production turning applications

Compatibility

Designed to accept CNMG 432 indexable inserts with a 0.5 inch inscribed circle. Compatible with standard 1 inch square shank tool blocks and quick-change toolpost systems. Suitable for multi-use turning center setups as indicated by the multi-use tool designation in the product specifications.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the machine powered down and the spindle locked before any tooling changes. The toolholder must be seated fully and evenly in the tool block, with clamping hardware torqued according to the machine tool manufacturer's specifications. Confirm insert orientation and seating in the pocket before resuming cuts. Inspect the wedge clamp and insert seat for wear or debris at each insert index.