Hertel 1000155 Mtan Indexable Turning Toolholder 1x1 Shank

Product Description

The HERTEL 1000155 is a right-hand MTAN-style indexable turning toolholder designed for negative-rake external turning operations on the lathe. It accepts TN..43. series inserts held in place by a clamp and screw mechanism, providing rigid, repeatable insert positioning during cuts. The toolholder features a 1 x 1 inch square shank and an overall length of 6 inches, making it a standard-size holder suited to most tool post setups found in production and job-shop environments. It is constructed from steel for durability under continuous cutting loads. This holder is installed by machinists and CNC turning specialists performing turning, facing, or profiling operations.

This toolholder is intended for use in conventional and CNC lathes where a right-hand, negative-rake cutting geometry is required. The MTAN style provides a 3-degree lead angle, which influences chip direction and tool engagement. With a back-of-bar to cutting edge distance of 1 inch and a head length of 1.21 inches, the holder positions the insert predictably for consistent depth-of-cut control. It is suited to medium and heavy turning applications in ferrous and non-ferrous materials where insert strength from a negative-rake geometry is preferred over positive-rake alternatives.

Key Features

• Right-hand MTAN toolholder style with negative 5-degree rake angle
• Accepts TN..43. series inserts (complete compatibility: TN.. 432) with clamp and screw holding method
• 1 x 1 inch square shank with 6-inch overall length for standard tool post fitment
• 3-degree lead angle for controlled chip direction and edge engagement
• 1/2 inch (0.500 inch) insert inscribed circle for robust insert support
• Steel construction for rigidity under interrupted and continuous turning loads

Compatibility

Designed to accept TN..43. series inserts, with complete insert compatibility for TN.. 432 geometry inserts. Fits standard tool posts accommodating a 1 x 1 inch square shank. Part of the HERTEL Multi-Option series; also referenced under catalog numbers MTANR and L164D.

Installation Notes

Installation and setup should be performed by a qualified machinist or CNC turning technician. Ensure the machine spindle is fully stopped and the tool post is de-energized before mounting or removing the toolholder. Torque insert clamp screws according to the insert manufacturer guidance for the TN..43. insert series. Confirm shank seating and insert height alignment before taking a test cut.