Carmex SER0375H11 Indexable Threading Toolholder

Product Description

The CARMEX SER0375H11 is an external, right-hand indexable threading toolholder designed for screw-held 11ER series inserts. Built to the SER style specification, it features a 3/8 inch (0.375 inch decimal) square shank and an overall length of 4 inches. The shank height measures 0.38 inches, and the back-of-bar to cutting edge dimension is 0.43 inches. This toolholder is intended for threading operations on lathes and turning centers where external thread profiles are required. It accepts inserts with a 1/4 inch inscribed circle, making it a compact and precise choice for threading work in metal fabrication and machining environments.

This toolholder is suited for external threading applications on manual or CNC lathes. The right-hand configuration is standard for conventional turning setups. The screw-held insert retention method provides secure clamping and reliable repeatability during threading passes. It does not include through-coolant capability, making it appropriate for dry or flood-coolant setups where coolant is delivered externally. Machinists and tool-and-die professionals working in production or job-shop environments will find this toolholder a practical fit for standard external threading tasks.

Key Features

• External threading application with right-hand cut orientation
• Accepts 11ER series inserts with a 1/4 inch inscribed circle
• Screw-held insert clamping for secure, repeatable positioning
• 3/8 inch square shank, 4 inches overall length
• SER series style, no through-coolant required
• Back of bar to cutting edge: 0.43 inches for precise positioning

Compatibility

Designed for use with 11ER series indexable threading inserts with a 1/4 inch inscribed circle. Follows the SER 0375 H11 style designation for toolholder and insert matching.

Installation Notes

Installation is performed by qualified machinists on lathes or turning centers. Before changing inserts or mounting the toolholder, ensure the machine is fully powered down and the spindle is locked. Secure the shank in the tool turret or toolpost to the machine manufacturer's specified clamping torque using the appropriate tooling hardware. Verify insert seating and screw torque with each insert index to maintain cutting accuracy.