Carmex SIL0005H06CB Threading Toolholder Internal Left Hand

Product Description

The CARMEX SIL0005H06CB is an indexable threading toolholder designed for internal threading operations on CNC lathes and boring applications. Built from solid carbide, the holder features a left-hand orientation and a 12 x 12 mm square shank. It accepts 06IL series inserts secured by a screw-clamp holding method. Overall length is 100 mm (3.937 inches), providing the reach needed for small-bore internal threading work. The SI toolholder style positions the cutting edge at 4.30 mm from center, with a back-of-bar to cutting edge measurement of 0.240 inches. No coolant-through or coolant entry is included in this configuration.

This toolholder is suited for internal threading in small-diameter bores on manual or CNC turning centers in metalworking environments. The solid carbide body provides greater rigidity than steel in tight-bore applications, reducing chatter and improving thread form accuracy. Typical users include machinists and toolroom technicians working on precision components in job shops, production facilities, and maintenance machining operations. Maximum depth of cut is 1.000 inch. The 5/32 inch insert inscribed circle size corresponds to the 06IL insert designation, making insert selection straightforward.

Key Features

• Internal threading application with left-hand cutting orientation
• Solid carbide shank body for maximum rigidity in small-bore work
• Accepts 06IL series inserts with screw-clamp holding method
• 12 x 12 mm square shank, 100 mm overall length (3.937 inches)
• No coolant-through design - simplified setup for standard dry or flood-coolant environments
• Maximum depth of cut 1.000 inch with 0.240 inch back-of-bar to cutting edge clearance

Compatibility

Designed for use with 06IL series indexable threading inserts. The SI toolholder style is compatible with standard boring bar setups on CNC and manual turning centers accepting a 12 x 12 mm shank size.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians familiar with indexable tooling systems. Secure the shank firmly in the tool post or boring bar holder before engaging any workpiece. Ensure the machine spindle is fully stopped and the machine is in a safe state before changing inserts or repositioning the holder. Follow the machine tool manufacturer torque guidelines for tool clamping fasteners.