Sandvik Coromant 5730572 Indexable Turning Toolholder

Product Description

The SANDVIK COROMANT 5730572 is a left-hand indexable turning toolholder in the DCLNL164D style, designed for use on CNC lathes and manual turning centers in production machining environments. It accepts CNMG 432 inserts and uses a wedge clamping method for secure, repeatable insert location under heavy cutting loads. The square shank measures 1 inch wide by 1 inch tall, with an overall length of 6 inches. A negative rake angle of -6 degrees makes this holder well suited for machining tough materials where insert strength and edge stability are critical. Machinists, tool-and-die shops, and production turning departments are the primary users of this toolholder.

This toolholder is configured for facing operations, where the cutting edge engages the workpiece face perpendicular to the spindle axis. The left-hand orientation positions the cutting edge correctly for standard facing passes on conventional lathe setups. The head length is 1.26 inches, and the back-of-bar to cutting edge distance is 6 inches. The wedge clamping system minimizes insert movement during interrupted cuts or high feed-rate operations, making it a reliable choice for both roughing and semi-finishing facing passes in steel, cast iron, and similar workpiece materials.

Key Features

• DCLNL164D toolholder style with left-hand cutting orientation for facing operations
• Wedge clamping method provides rigid, repeatable insert seating under cutting loads
• Accepts CNMG 432 inserts with a 0.5 inch inscribed circle
• 1 inch by 1 inch square shank fits standard OD turning tool blocks and quick-change systems
• Negative rake geometry (-6 degrees) supports insert strength in demanding cuts
• Multi-use designation allows application across a range of compatible workpiece materials and operations
• Steel toolholder body for durability and consistent dimensional stability

Compatibility

Designed to accept CNMG 432 indexable inserts with a 0.5 inch inscribed circle. Fits standard 1 inch square shank tool stations on OD turning lathes and machining centers. Confirm turret or tool block bore and slot dimensions before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts or seating the toolholder. Ensure the shank seating surface and clamping pocket are clean and free of chips before tightening. Follow the machine tool builder specifications for tool block clamping torque and insert wedge screw torque.