Dorian Tool 73310150902 Mtjn Indexable Turning Toolholder

Product Description

The DORIAN TOOL 73310150902 is a right-hand MTJN-style indexable turning toolholder designed for negative rake cutting operations on CNC and manual lathes. Built from steel with a 1 inch by 1 inch shank and an overall length of 6 inches, this holder accepts TNM 432 inserts secured by a combined clamp and pin holding method. The -7 degree rake angle is suited for interrupted cuts and harder workpiece materials where edge strength is critical. Machinists and toolroom technicians install this holder in standard turning centers for external turning applications requiring precise, repeatable insert positioning.

This toolholder is intended for external turning operations in production and job-shop environments. The right-hand cutting direction makes it a standard choice for conventional lathe setups where material feeds from right to left. The 3-degree lead angle and a back-of-bar to cutting edge distance of 1.25 inches allow for controlled chip flow and consistent depth of cut. It is a non-coolant-through design, making it appropriate for dry or flood-coolant setups where through-spindle coolant is not required or available.

Key Features

• MTJN toolholder style with -7 degree negative rake angle for edge strength on demanding cuts
• Accepts TNM 432 inserts with a 0.5 inch inscribed circle diameter
• Clamp and pin insert holding method for secure, repeatable seating
• 1 inch by 1 inch steel shank, 6 inches overall length
• Right-hand cutting direction for standard lathe turning setups
• Non-coolant-through design compatible with flood or dry machining

Compatibility

Designed to accept TNM 432 indexable inserts with a 0.5 inch inscribed circle. Verify insert geometry and seat dimensions against your specific insert manufacturer specifications before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool turret or post is locked before mounting or removing the toolholder. Torque all mounting hardware according to the machine tool manufacturer's specifications. Confirm insert seating and clamp engagement before initiating a cutting pass.