Hertel 1000147 Mten Neutral Indexable Turning Toolholder

Product Description

The HERTEL 1000147 is a neutral-hand MTEN-style indexable turning toolholder designed for negative-rake external turning operations on CNC and manual lathes. It features a 0.75 inch square shank (0.75 inches wide by 0.75 inches tall) and an overall length of 4.5 inches. The toolholder uses a clamp-and-screw insert holding method and is engineered to accept TN..33. series inserts with a 0.375 inch inscribed circle. Built from steel, it delivers the rigidity required for interrupted cuts and high-feed roughing passes. Installed by machinists and toolroom technicians, this holder is a standard fit for production turning applications.

This toolholder is suited for external turning operations in both job-shop and production environments. The neutral hand orientation makes it adaptable to a range of toolpost and turret configurations without favoring a particular cut direction. The head length of 1.16 inches and the back-of-bar to cutting-edge distance of 0.375 inches position the insert for consistent tool geometry across standard turning setups. It is part of the HERTEL Multi-Option series, which is designed to provide tooling flexibility across varying material and depth-of-cut requirements.

Key Features

• Neutral hand orientation for flexible turret and toolpost mounting
• Negative rake angle of -10 degrees for strength in heavy and interrupted cuts
• Clamp-and-screw insert holding method for secure seating under high cutting loads
• Accepts TN..33. series inserts (TN.. 332 complete compatibility) with 0.375 inch inscribed circle
• Steel construction for rigidity and durability in production turning
• No coolant-through channels, simplifying setup on standard turning centers

Compatibility

Designed to accept TN..33. series inserts, with complete insert compatibility listed as TN.. 332. Verify insert seat geometry and clamping screw size against the insert specification before installation.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine before mounting or removing the toolholder from the turret or toolpost. Ensure the shank seating surfaces are clean and free of chips before tightening the clamping bolts to the machine manufacturer's specified torque. Confirm insert and toolholder compatibility before placing the tool in cut.