Sandvik Coromant 5731387 Indexable Turning Toolholder

Product Description

The SANDVIK COROMANT 5731387 is a DSDNN-style indexable turning toolholder designed for negative-rake external turning operations on CNC lathes and turning centers. It uses a wedge clamping method to secure SNMG 432 inserts with a 0.5-inch inscribed circle, delivering rigid, repeatable insert location under heavy cutting loads. The shank measures 1 inch wide by 1 inch tall, and the overall length is 6 inches. With a rake angle of -6 degrees, this toolholder is suited for facing operations where edge strength and stability matter. Machining shops and tool-and-die operations rely on this style of holder for high-feed roughing and finishing passes on ferrous and non-ferrous materials.

This toolholder is intended for use in manual and CNC turning applications where facing is the primary operation. The neutral hand orientation gives it flexibility in straight-turning setups. It fits standard square-shank tool blocks and turrets that accept 1-inch by 1-inch shanks. The 6-inch overall length accommodates standard tool post clearances on mid-size lathes. The head length of 1.45 inches and a back-of-bar to cutting edge measurement of 6 inches are consistent with standard turret positioning requirements. Machinists working in production or job-shop environments will find this holder compatible with common SNMG insert grades for steel, cast iron, and stainless steel turning.

Key Features

• DSDNN toolholder style with neutral hand orientation for straight and facing cuts
• Wedge clamping secures SNMG 432 inserts for rigid, vibration-resistant performance
• 1 inch by 1 inch square shank fits standard square-shank turret pockets
• Negative rake angle of -6 degrees provides strong cutting edge geometry for heavy cuts
• 6-inch overall length with 1.45-inch head length suits mid-size CNC and manual lathes
• Steel construction for durability in continuous and interrupted cutting applications

Compatibility

Accepts SNMG 432 inserts with a 0.5-inch inscribed circle. Fits tool posts and turret stations designed for 1-inch by 1-inch square shanks. Part of the T-Max P series platform.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the lathe or turning center is fully powered down and the turret is locked before mounting or removing the toolholder. Seat the shank fully into the tool block or turret pocket and verify clamping torque against the machine tool manufacturer's specifications. Inspect the wedge clamp and insert seat for chips or debris before securing the insert.