Dorian Tool 73310153490 Threading Toolholder 1x1 Inch

Product Description

The DORIAN TOOL 73310153490 is an indexable threading toolholder designed for internal threading operations on CNC lathes and turning centers. Part of the DorNotch Jet-Stream series, it accepts NG-3L inserts held by a clamp-style insert holding method and features a built-in coolant-through system with a 1/8 NPT coolant hole. The right-hand holder has a 1 x 1 inch square shank and an overall length of 8 inches. A minimum bore diameter of 1.38 inches and a 3/8 inch insert inscribed circle make it well suited for threading bores in medium to large diameter workpieces. Machinists and toolroom technicians working in production or job-shop environments will find the integrated coolant delivery particularly useful for maintaining thread quality and insert life.

This toolholder is intended for internal threading on metal workpieces in production machining environments. The AS-ADNE toolholder style positions the cutting edge at 0.69 inches from center, providing reliable clearance geometry for threading passes. It is applicable in shops running steel, stainless, cast iron, and similar materials where consistent thread form and surface finish are required. The coolant-through design directs fluid directly to the cutting zone, reducing heat buildup and improving chip evacuation during deep-bore threading operations.

Key Features

• Internal, right-hand threading configuration with AS-ADNE toolholder style
• Coolant-through design with 1/8 NPT coolant hole for direct cutting-zone fluid delivery
• Accepts NG-3L indexable inserts secured by clamp-style holding method
• 1 x 1 inch square shank with 8 inch overall length for rigid setup
• Minimum bore diameter of 1.38 inches supports medium to large bore threading
• Multi-use tool designation allows application across compatible threading insert grades

Compatibility

Designed for use with NG-3L indexable threading inserts. Insert inscribed circle is 3/8 inch. Verify insert grade and thread form geometry with your insert supplier before setup.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank fully in the turret or toolpost and confirm the tool is set on center before taking threading passes. Connect the coolant line to the 1/8 NPT port using an appropriate fitting and verify coolant flow before running. Power down and lock out the machine before changing inserts or adjusting the toolholder position.