Carmex MPR3R0.2L10 Profile Boring Bar Solid Carbide

Product Description

The CARMEX MPR3R0.2L10 is a solid carbide profile boring bar designed for internal threading and contour operations in small-bore applications. It cuts right-hand and features a minimum bore diameter of 0.12 inches with a maximum bore depth of 0.39 inches. The 0.008-inch corner radius supports precise profile geometry in tight bores. With an overall length of 1.5 inches and a 3.00 mm shank diameter, this bar fits compact toolholders used in CNC lathes and Swiss-style turning centers. A bright finish coating leaves the carbide substrate exposed for direct inspection. Machinists and toolroom operators working on small-diameter internal features will find this bar suited to close-tolerance finishing passes.

This profile boring bar is intended for small-bore internal profiling, threading, and contour turning operations. It is typically used in CNC lathe setups where bore diameters start at 0.12 inches, making it appropriate for precision components such as hydraulic fittings, medical parts, and miniature mechanical assemblies. The right-hand cutting direction is standard for conventional spindle rotation in most turning applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-bore work
• Minimum bore diameter of 0.12 inches for access to tight internal features
• Maximum bore depth of 0.39 inches supports through and blind-bore profiling
• 0.008-inch corner radius for precise internal contour geometry
• Bright finish coating with 3.00 mm shank diameter for compact toolholder compatibility
• Right-hand cutting direction matches standard spindle rotation on most CNC lathes

Compatibility

Designed as an OEM-style replacement or direct-fit tooling solution for CNC lathes and Swiss-style turning centers accepting a 3.00 mm shank diameter boring bar.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before mounting or removing the boring bar. Ensure the shank is fully seated and clamped in the toolholder to the manufacturer-specified engagement depth to prevent chatter in small-bore cuts. Do not exceed the rated maximum bore depth of 0.39 inches to avoid deflection or tool breakage.