Carmex MTR8R0.2L22 Boring Bar Solid Carbide Right Hand

Product Description

The CARMEX MTR8R0.2L22 is a solid carbide boring bar designed for internal turning and bore finishing operations on CNC lathes and manual turning centers. It accepts a minimum bore diameter of 0.32 inches and reaches a maximum bore depth of 0.87 inches, making it well suited for small-diameter precision work. The right-hand cutting direction and bright finish coating support clean chip evacuation and consistent surface finish. With an overall length of 2.5 inches and an 8.00 mm shank diameter, this bar fits standard boring bar holders used in production and job-shop environments. Machinists and CNC operators working with tight-tolerance bores will find this tool appropriate for finishing and light roughing passes.

This boring bar is intended for use in turning operations where small internal diameters require precise, controlled material removal. The 0.008 inch corner radius produces a fine surface finish suitable for close-tolerance fits. It is a common choice in metal fabrication shops, production machining facilities, and maintenance machining environments where small-bore internal features are routinely machined in steel, aluminum, and similar workpiece materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-bore applications
• Minimum bore diameter of 0.32 inches with a maximum bore depth of 0.87 inches
• Right-hand cutting direction for standard CNC lathe setups
• 0.008 inch corner radius for fine surface finish on close-tolerance bores
• Bright finish coating supports chip flow and tool life
• 8.00 mm shank diameter fits standard small-bore toolholders

Compatibility

Designed as an OEM-style replacement and direct-fit boring bar for turning centers and CNC lathes equipped with boring bar holders accepting an 8.00 mm shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the control is in an e-stop or locked-out state before mounting or removing the boring bar. Secure the shank firmly in the toolholder to the manufacturer-specified clamping torque for that holder, and verify tool overhang does not exceed recommended guidelines to prevent chatter. Confirm correct tool offset entry in the CNC control before taking the first cut.