Hertel 1000118 Lh Mdqn Indexable Turning Toolholder

Product Description

The HERTEL 1000118 is a left-hand MDQN-style indexable turning toolholder designed for negative rake metal-cutting operations on CNC lathes and manual turning centers. It features a 1 inch by 1 inch square shank and an overall length of 6 inches, making it a standard-footprint holder suited for a wide range of turning setups. The rake angle is -7 degrees, which promotes insert edge strength and is well matched to interrupted cuts and harder workpiece materials. The holder uses a clamp-and-screw insert retention method, providing secure and repeatable insert indexing. This toolholder is installed by machinists and CNC setup technicians in production and job-shop environments.

This toolholder is suited for external turning applications where a left-hand cutting direction is required. The MDQN style positions the insert at a 17.5-degree lead angle, which influences chip flow and approach geometry during facing and turning passes. It is used in shops running steel, stainless, cast iron, and similar machinable materials. The holder accepts DN..43. series inserts with a 1/2 inch inscribed circle, giving toolroom personnel a broad selection of insert grades and chipbreaker geometries to choose from within that insert family.

Key Features

• Left-hand cutting orientation with MDQN toolholder style
• Negative rake at -7 degrees for enhanced insert edge strength
• Clamp and screw insert holding method for secure, repeatable seating
• Accepts DN..43. inserts with 1/2 inch inscribed circle
• Steel construction for rigidity in production turning applications
• No coolant-through feature — compatible with flood or dry cutting setups

Compatibility

Designed to accept DN.. 432 series indexable inserts with a 1/2 inch (0.500 inch) inscribed circle, per the MDQN toolholder standard. Verify insert seat and clamping hardware condition before installing replacement inserts.

Installation Notes

This toolholder is installed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before mounting or removing the holder from the turret or tool post. Confirm shank seating and clamp torque against the machine tool manufacturer's turret specifications. Inspect the insert pocket and clamping components for wear or debris before indexing or replacing inserts.