Vargus 66234 Indexable Threading Toolholder Internal Rh

Product Description

The VARGUS 66234 is an indexable threading toolholder designed for internal threading operations on lathes and turning centers. Built in a right-hand configuration with an NVR toolholder style, it accepts 2IR inserts secured by a screw-clamp holding method. The shank measures 0.75 inches wide by 0.67 inches tall with a 6-inch shank length and an overall length of 7 inches. Coolant-through capability is included, supporting chip control and tool life in demanding threading applications. This toolholder is intended for use by machinists and toolroom professionals working in production or job-shop environments.

This toolholder is suited for internal threading on bores with a minimum diameter of 0.5 inches. The head length is 1 inch, with a maximum depth of cut of 1 inch. The center-to-cutting-edge distance is 0.28 inches, and the back-of-bar to cutting edge measures 11.81 mm. It is part of the Standard series, making it a straightforward fit for shops already running compatible 2IR inserts. Typical applications include threading bores in steel, cast iron, and similar materials on CNC or manual turning equipment.

Key Features

• Internal threading configuration with right-hand orientation
• NVR toolholder style accepts 2IR indexable inserts with screw-clamp retention
• Coolant-through design aids chip evacuation and extends insert life
• 0.5-inch minimum bore diameter enables threading of smaller internal features
• 6-inch shank length and 7-inch overall length provide reach for deeper bore threading
• Standard series for broad compatibility with existing 2IR insert inventory

Compatibility

Designed to accept 2IR series indexable threading inserts with a 1/4-inch inscribed circle. Screw-clamp holding method is compatible with standard 2IR insert configurations used in internal threading on lathes and turning centers.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the machine spindle is fully stopped and the toolholder is securely clamped in the turret or boring bar holder before engaging the workpiece. Verify insert seating and screw torque per the insert manufacturer's recommendations before running. Confirm coolant-through passages are clear and connected if using the through-coolant feature.