Tool-flo 93301616D Threading Toolholder 1x1 Inch Shank

Product Description

The TOOL-FLO 93301616D is an indexable threading toolholder designed for external threading and grooving operations on lathes and turning centers. Built in the FLSL series with a left-hand orientation, this toolholder accepts FL 3L inserts secured by a clamp-style holding method. The shank measures 1 inch wide by 1 inch tall with a 6-inch shank length and 6-inch overall length, giving it a compact, rigid profile suited to external thread-cutting applications. A maximum depth of cut of 0.210 inches and a back-of-bar to cutting edge distance of 1.250 inches define its reach and cutting envelope. Licensed machinists and CNC turning technicians are the primary installers of this toolholder.

This toolholder is suited for external threading and grooving on manual and CNC lathes where a left-hand, square-shank tool is required. The FLSL series configuration positions the cutting edge for right-to-left feed direction, making it appropriate for thread-chasing operations on the far side of a part or in specialized fixturing setups. The multi-use designation confirms it supports both threading and grooving without a dedicated single-purpose holder.

Key Features

• External threading and grooving capability in a single multi-use toolholder
• Left-hand orientation for right-to-left feed direction cutting
• Clamp-style insert retention for secure, repeatable FL 3L insert seating
• 1 x 1 inch square shank with 6-inch overall length for rigid setup
• Maximum depth of cut of 0.210 inches
• Back-of-bar to cutting edge distance of 1.250 inches
• No-coolant configuration (Coolant Entry Style Code 0) keeps setup simple

Compatibility

Designed to accept FL 3L series indexable inserts. Confirm insert geometry and grade selection with TOOL-FLO FL 3L insert specifications before ordering.

Installation Notes

Installation of this toolholder is performed by a qualified machinist or CNC setup technician. The machine spindle must be locked and all motion fully stopped before mounting or removing the toolholder from the turret or tool post. Verify shank bore and block dimensions match the 1 x 1 inch shank before clamping. Torque all clamping fasteners to the machine or toolblock manufacturer specifications, not to values assumed from general practice.