Hertel 1000116 Lh Mdjn Indexable Turning Toolholder

Product Description

The HERTEL 1000116 is a left-hand MDJN-style indexable turning toolholder designed for use on CNC and manual lathes in metal-cutting operations. It features a negative rake geometry with a 3-degree lead angle, accepting DN..33. series inserts secured by a clamp and screw holding method. The shank measures 1 inch wide by 1 inch tall, with an overall length of 6 inches. The head length is 1.25 inches, and the back-of-bar to cutting edge dimension is 1.25 inches. The body is constructed from steel for rigidity under interrupted cuts and continuous turning passes. This toolholder is installed by machinists and CNC operators in production and job-shop environments.

This toolholder is suited for external turning applications on lathes where a left-hand cutting direction is required. The negative rake configuration handles harder workpiece materials and heavier depths of cut typical in roughing and semi-finishing operations. The MDJN style provides a 3-degree lead angle that directs cutting forces away from the workpiece shoulder. It belongs to the Multi-Option series, giving toolroom and production machinists a consistent platform when standardizing on DN..33. insert families across multiple holder configurations.

Key Features

• Left-hand MDJN toolholder style with 3-degree lead angle
• Negative rake geometry suited for heavier cuts and harder materials
• Clamp and screw insert holding method for secure, repeatable insert seating
• Accepts DN..33. inserts with a 0.375-inch inscribed circle
• Steel construction provides rigidity and resistance to deflection
• Shank cross-section of 1 inch by 1 inch fits standard lathe tool blocks

Compatibility

Designed to accept DN..33. series inserts (complete insert compatibility: DN.. 332) with a 0.375-inch inscribed circle. Fits standard 1 inch by 1 inch tool block or turret pocket configurations on CNC and manual lathes.

Installation Notes

Installation is performed by machinists using standard hex keys or torx drivers appropriate to the clamp screw specification. Power down and lock out the lathe spindle before seating or changing inserts. Confirm the insert pocket and clamp surfaces are free of chips and debris before tightening to ensure proper insert contact and tool height. Follow the machine tool manufacturer and shop safety procedures when setting tool offsets.