Seco 00013373 Stgc Indexable Turning Toolholder 3/8 in

Product Description

The SECO 00013373 is a right-hand STGC-style indexable turning toolholder designed for external turning operations on CNC and manual lathes. It features a 3/8 inch by 3/8 inch steel shank with a 2.5-inch overall length and uses a screw-lock insert holding method for secure, repeatable insert positioning. The holder accepts TC..21.5. series inserts with a 1/4-inch inscribed circle and is configured with a neutral rake at 0 degrees and a 90-degree lead angle. Licensed machinists and CNC setup techs install this holder in standard toolpost or gang-tool arrangements for general turning work across a wide range of workpiece materials.

This toolholder is suited for both roughing and finishing passes in production and job-shop turning environments. Its universal primary workpiece material rating covers steel, stainless, cast iron, non-ferrous, and superalloys, corresponding to material codes H, K, M, N, P, and S. The right-hand cutting direction and 90-degree lead angle make it a standard choice for straight turning, facing, and shoulder work where a rigid, compact shank is required. At 2.5 inches overall length, it fits well in tight turret positions without sacrificing rigidity.

Key Features

• Screw-lock insert clamping for rigid, repeatable insert seating
• Accepts TC..21.5. inserts with 1/4-inch inscribed circle
• Neutral rake (0 degrees) and 90-degree lead angle for versatile turning profiles
• 3/8 inch by 3/8 inch shank fits standard toolpost and turret bores
• Universal material compatibility across steel, stainless, cast iron, non-ferrous, and superalloys
• Steel toolholder body for durability under continuous cutting loads

Compatibility

Designed for use with TC..21.5. series indexable inserts with a 1/4-inch inscribed circle. Compatible insert size code is TC215. No coolant-through capability; standard external coolant delivery applies.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before seating or changing inserts or adjusting toolholder position. Ensure the shank bore and toolpost or turret pocket are clean and free of chips before mounting. Torque the insert clamping screw to the insert manufacturer's specification using the correct Torx or hex key — do not over-tighten, as this can damage the insert seat or screw.