Hertel 1000210 Lh Mwln Indexable Turning Toolholder

Product Description

The HERTEL 1000210 is a left-hand MWLN-style negative rake indexable turning toolholder designed for external turning operations on metal lathes and turning centers. It features a 1 inch by 1 inch square shank and an overall length of 6 inches, making it well-suited for standard tool post and turret applications. The toolholder operates at a negative 5-degree rake angle and uses a clamp-and-screw insert holding method for secure, repeatable insert seating. It accepts WN..43. series inserts with a 0.5 inch inscribed circle. Constructed from steel, this toolholder is built for rigidity under interrupted cuts and continuous turning passes. Machinists and tool-and-die professionals install this holder on manual lathes and CNC turning centers alike.

This toolholder is intended for external turning applications where a left-hand cutting direction is required. The MWLN style positions the insert at a 5-degree lead angle, directing cutting forces toward the spindle for improved stability. It is a practical choice for shops running general-purpose turning on steel, cast iron, and similar materials where negative rake inserts deliver longer edge life under heavier feeds. The back of bar to cutting edge distance is 1.25 inches, and the head length measures 1.13 inches, providing predictable tool nose positioning during setup.

Key Features

• Left-hand MWLN toolholder style with negative 5-degree rake angle
• Clamp and screw insert holding method for secure insert retention under load
• Accepts WN..43. series inserts with 0.5 inch inscribed circle
• 1 inch x 1 inch square steel shank for rigid tool post and turret mounting
• 6 inch overall length with 1.13 inch head length and 1.25 inch back-of-bar to cutting edge
• Part of the Multi-Option series for broad insert compatibility

Compatibility

Designed to accept WN..43. series inserts, specifically WN..432 geometry, with a 0.5 inch inscribed circle. Verify insert pocket geometry and clamping hardware before installation to confirm fitment with your chosen insert grade and chipbreaker style.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the toolholder shank fully within the tool post or turret block to the manufacturer-recommended engagement depth before tightening. Power down and lock out the machine spindle before changing inserts or adjusting the holder. Inspect the insert pocket and clamping screw for wear or damage each time an insert is indexed.