Dorian Tool 73310101434 Cxa Threading Tool Holder

Product Description

The DORIAN TOOL 73310101434 is a CXA-series threading tool holder with an external on-edge cartridge, designed for use on engine lathes and turret lathes in production and job-shop environments. Built to Number 881 specifications, this holder accepts TNMC-32NV inserts and delivers rigid, repeatable positioning for external threading operations. The overall height is 2 inches and the overall length is 5.119 inches, with a centerline height of 1.625 inches. It weighs 2 pounds and is suited for lathes in the 14 to 17 inch swing range. Licensed machinists and CNC lathe operators are the primary installers.

This holder is designed for external threading applications where an on-edge cartridge configuration is required for proper insert presentation and chip clearance. It fits CXA-series quick-change tool post systems, which are standard on mid-size engine lathes with 14 to 17 inch swing capacity. Typical use cases include threading workpieces in general machining, toolroom work, and repetitive production runs where consistent centerline height is critical. Through-coolant is not supported on this holder.

Key Features

• CXA-series quick-change tool post compatibility for fast, repeatable setup
• External on-edge cartridge design optimized for threading insert geometry
• Accepts TNMC-32NV inserts with 0.375 inch inscribed circle and 0.125 inch insert thickness
• Centerline height of 1.625 inches for proper tool alignment on compatible lathes
• Fits lathes with 14 to 17 inch swing (350 to 430 mm)
• No through-coolant port, keeping the design compact and straightforward

Compatibility

Designed for use with CXA-series quick-change tool post systems on engine lathes with a swing range of 14 to 17 inches (350 to 430 mm). Compatible insert is TNMC-32NV with a 0.375 inch inscribed circle and 0.125 inch thickness.

Installation Notes

Installation is performed by a machinist or lathe operator. Before mounting or changing any tool holder, disengage the lathe spindle drive and bring the machine to a full stop. Secure the CXA tool post stud and lock the holder firmly before beginning any threading pass. Verify centerline height alignment against the workpiece center using a reference tool or test indicator before running the first part.