Tool-flo 93301216B Threading Toolholder External Left Hand

Product Description

The TOOL-FLO 93301216B is an indexable threading toolholder designed for external thread cutting operations. Built in the FLSL series, this left-hand toolholder accepts FL 3L inserts secured by a clamp-style holding method. The shank measures 0.75 x 0.75 inches with an overall length of 4.5 inches, making it a compact yet rigid platform for threading and grooving on a lathe. A maximum depth of cut of 0.210 inches and a back-of-bar to cutting edge distance of 1.000 inch define its reach and cutting envelope. This toolholder is installed by machinists and CNC lathe operators in production and job-shop environments.

The 93301216B is suited for external threading and grooving applications on CNC and manual lathes where a left-hand tool orientation is required. Its 0.75 x 0.75 inch shank fits standard square-shank tool blocks and turrets common in light-to-medium-duty turning centers. The multi-use designation means a single holder can cover both threading and grooving operations when paired with compatible FL 3L inserts, reducing tooling changeovers on the machine.

Key Features

• External, left-hand thread cutting orientation for CNC and manual lathes
• FLSL series design with clamp-style FL 3L insert holding for secure, repeatable indexing
• 0.75 x 0.75 inch square shank fits standard tool blocks and turret stations
• 4.5 inch overall length with 1.000 inch back-of-bar to cutting edge distance
• Maximum depth of cut of 0.210 inches supports threading and grooving in a single holder
• No-coolant-through design; operates without internal coolant supply

Compatibility

Designed for use with FL 3L series inserts. Fits standard 0.75 x 0.75 inch square-shank tool blocks and turret holders on CNC and manual lathes.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Secure the machine spindle and disengage all drives before mounting or removing toolholders from the turret or tool block. Torque all clamping screws according to the machine tool manufacturer specifications. Verify insert seating and holder alignment before resuming cutting operations.