Hertel H08700106 Threading Toolholder 1.25 Inch Shank

Product Description

The HERTEL H08700106 is an indexable threading toolholder designed for external thread-cutting operations on CNC lathes and turning centers. Built to the HSER series standard, this right-hand toolholder accepts 16ER inserts secured by a screw clamping method, providing reliable insert retention during threading passes. The shank measures 1.25 x 1.25 inches with an overall length of 7 inches, making it a straightforward drop-in choice for standard square-shank tool blocks. Machinists and CNC operators working on external threaded features will find this holder well-suited to production turning environments where consistent insert indexing is required.

This toolholder is intended for external threading applications in metalworking operations, typically on CNC turning centers or manual engine lathes equipped with square-shank toolpost systems. The HSER style is a widely recognized toolholder configuration used in both job-shop and production-floor settings. It is installed by qualified machinists or toolroom technicians. No coolant-through capability is present on this unit, so external coolant delivery should be arranged separately when thermal management is needed during threading operations.

Key Features

• External threading application with right-hand cutting orientation
• Accepts 16ER indexable inserts with a 3/8-inch inscribed circle
• Screw insert-holding method for secure clamping during threading passes
• 1.25 x 1.25 inch square shank fits standard square-shank toolpost blocks
• 7-inch overall length suits common CNC lathe tool block configurations
• HSER series style (Style: HSER-1250-7-16) for recognized toolholder compatibility

Compatibility

Designed for use with 16ER series indexable threading inserts with a 3/8-inch inscribed circle. Fits toolpost systems accepting a 1.25 x 1.25 inch square shank. No additional compatible model numbers were specified in available product data.

Installation Notes

Installation should be 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 securing the holder. Follow the machine tool manufacturer's torque guidelines for toolpost or turret clamping hardware.