Carmex SER1250P22U Threading Toolholder External Right Hand

Product Description

The CARMEX SER1250P22U is an indexable threading toolholder designed for external threading operations on CNC lathes and manual turning centers. Built to SER series standards, this right-hand toolholder accepts 22U ER/L inserts secured by a screw-clamp holding method for repeatable positioning. The shank measures 1.25 x 1.25 inches square with an overall length of 7 inches. The body is machined from steel for rigidity under interrupted cuts and continuous threading passes. This toolholder is installed by machinists and toolroom technicians working in production turning environments where thread form accuracy is critical.

The SER1250P22U is suited for external threading on ferrous and non-ferrous workpieces in both production and job-shop environments. The SE toolholder style positions the insert at the correct approach angle for unified and metric external thread profiles. Because this holder does not include coolant-through capability, it is best applied in dry or flood-coolant setups where coolant is delivered externally. Typical applications include threading shafts, fasteners, couplings, and fittings on machines with standard square-shank tool blocks or turret stations that accept a 1.25-inch shank.

Key Features

• External threading geometry with right-hand cutting orientation
• Accepts 22U ER/L indexable threading inserts for quick changeovers
• Screw-clamp insert holding method ensures secure, repeatable seating
• 1.25 x 1.25 inch steel shank for rigid tool block or turret mounting
• 7-inch overall length suits standard lathe turret reach requirements
• No coolant-through passages - compatible with external flood coolant delivery

Compatibility

Designed for use with 22U ER/L series indexable threading inserts. Fits tool blocks and turret stations accepting a 1.25 x 1.25 inch square shank. Part of the SER toolholder series for external threading applications.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. The machine spindle must be stopped and the turret fully indexed and locked before mounting or removing this toolholder. Torque insert clamping screws according to the insert manufacturer guidelines using the correct Torx or hex key. Confirm shank seating and tool overhang before taking a threading pass, and verify insert orientation matches the intended thread hand before running.