Carmex SIR0005H06CB Threading Toolholder 1/4 Inch Shank

Product Description

The CARMEX SIR0005H06CB is an indexable threading toolholder designed for internal threading operations on CNC lathes and turning centers. Built from solid carbide, this right-hand holder accepts 06IR indexable inserts secured by a screw-clamp holding method for repeatable edge positioning. The shank measures 0.25 inches wide by 0.25 inches tall with an overall length of 3.937 inches. The insert inscribed circle is 5/32 inches, and the maximum depth of cut is 1.0 inches. No coolant-through or external coolant entry port is included. This holder is installed by machinists and tool-and-die technicians working on precision threading applications.

This toolholder is suited for internal threading on small-bore workpieces in production and job-shop environments. The compact 0.25-inch square shank allows use in tight bore clearances where larger holders cannot reach. The SI-style geometry and right-hand orientation make it appropriate for standard right-hand internal thread profiles. It is a single-use configuration - not a multi-use tool - and is intended exclusively for threading operations rather than turning or grooving.

Key Features

• Solid carbide shank construction for rigidity in small-bore internal threading
• Right-hand cut orientation with SI-style toolholder geometry
• Screw-clamp insert holding method for secure, repeatable insert indexing
• Accepts 06IR indexable threading inserts with 5/32-inch inscribed circle
• Maximum depth of cut of 1.0 inches for through-bore and blind-bore applications
• No coolant-through design - compatible with external flood coolant setups

Compatibility

Designed to accept 06IR-style indexable threading inserts. Confirm insert thread form and pitch compatibility before installation. No specific machine or system compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool builder's toolholding procedures. Ensure the machine spindle is fully stopped and the control is in an E-stop or locked-out state before changing inserts or mounting the holder. Use a calibrated torque wrench on the insert clamping screw and follow the insert manufacturer's torque specification. Confirm shank clamp fit and tool overhang before taking a threading pass.