Hertel 1000197 Lh Mvjn Indexable Turning Toolholder

Product Description

The HERTEL 1000197 is a left-hand MVJN-style indexable turning toolholder designed for negative rake turning operations on CNC lathes and manual turning centers. Built from steel, it features a 1 inch by 1 inch square shank and an overall length of 6 inches. The toolholder uses a clamp-and-screw insert holding method, providing secure, repeatable seating for VN..43-series inserts with a 0.5 inch inscribed circle. It carries a 3-degree lead angle and is suited for general-purpose external turning where left-hand tool approaches are required. This is a professional-grade toolholder installed and maintained by machinists and CNC lathe operators in production and job-shop environments.

The HERTEL 1000197 is intended for external turning applications on ferrous and non-ferrous workpieces where a left-hand cutting direction is specified. The MVJN style and negative rake geometry are well matched to interrupted cuts, hard materials, and high-feed roughing passes. The 2 inch head length and 1.25 inch back-of-bar to cutting edge dimension allow proper tool positioning in standard MVJN-compatible toolpost or turret stations. This toolholder is cataloged under the Multi-Option series and ships as a single unit.

Key Features

• Left-hand MVJN toolholder style with negative rake geometry
• 1 inch by 1 inch steel shank, 6 inches overall length
• Clamp and screw insert holding method for secure, repeatable insert indexing
• Accepts VN..43-series inserts with 0.5 inch inscribed circle
• 3-degree lead angle for positive chip control during external turning
• Head length of 2 inches with 1.25 inch back-of-bar to cutting edge

Compatibility

Compatible with VN..43-series negative rake turning inserts, specifically VN.. 432 geometry inserts with a 0.5 inch inscribed circle. Designed for use in MVJN-style toolpost or turret stations that accept a 1 inch by 1 inch square shank toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC lathe operator with the machine powered down and the spindle locked before toolholder exchange. Secure the shank fully in the toolpost or turret pocket and confirm proper tool height alignment before resuming operation. Follow the machine manufacturer and insert manufacturer torque guidelines when tightening the clamp screw on the insert. Inspect the insert seat and clamp surfaces for chips or debris before each insert change to maintain accurate cutting edge positioning.