Hertel 1000170 Mtfn Indexable Turning Toolholder 3/4 in

Product Description

The HERTEL 1000170 is a right-hand MTFN-style indexable turning toolholder designed for external turning operations on CNC lathes and manual turning centers. It features a negative rake angle of -5 degrees and accepts TN..43. series inserts, secured by a clamp and screw holding method for rigid, repeatable insert positioning. The 3/4 inch by 3/4 inch square shank and 4.5 inch overall length suit a wide range of tool post and turret setups. Built from steel, this toolholder is intended for professional machinists and tool-room technicians running production or job-shop turning applications.

This toolholder is suited for external turning applications where a negative rake geometry is required for improved edge strength and longer insert life on harder or interrupted-cut materials. The MTFN configuration positions the insert for lead-angle turning with side and end cutting capability. The back-of-bar to cutting edge distance of 1.0 inch provides adequate clearance for most standard lathe setups. It is used in both production machining environments and maintenance machine shops.

Key Features

• Right-hand MTFN toolholder style with -5 degree negative rake angle for strong insert support
• Accepts TN..43. (complete compatibility: TN.. 432) series inserts with 0.5 inch inscribed circle
• Clamp and screw insert holding method for secure, repeatable seating
• 3/4 inch by 3/4 inch square shank with 4.5 inch overall length
• Steel construction for durability in demanding turning applications
• No coolant-through feature; standard external coolant delivery applies

Compatibility

Designed for use with TN..43. series indexable inserts, specifically the TN.. 432 insert family, with a 0.5 inch inscribed circle. Part of the HERTEL Multi-Option series. Catalog reference: MTFNR L124B.

Installation Notes

Installation should be performed by a qualified machinist with the lathe powered off and the spindle locked before mounting or adjusting the toolholder. Secure the shank firmly in the tool post or turret to the machine manufacturer's recommended clamping procedure before indexing or replacing inserts. Always inspect the insert pocket and clamping hardware for wear or debris before seating a new insert. Follow applicable shop safety protocols when handling carbide inserts.