Carmex MPR3R0.2L15 Profile Boring Bar Solid Carbide

Product Description

The CARMEX MPR3R0.2L15 is a solid carbide profile boring bar designed for internal profiling operations on small-diameter bores. It features a right-hand cutting direction, a minimum bore diameter of 0.12 inches, and a maximum bore depth of 0.59 inches. The bright finish coating helps reduce built-up edge and supports chip flow in tight bore conditions. With an overall length of 1.5 inches and a 3.00 mm shank diameter, this bar is suited for precision lathe and turning center work where compact tooling geometry is required. Machinists and toolroom professionals working with small-bore internal profiles will find this bar fits standard toolholding systems for that shank size.

This profile boring bar is intended for small-bore internal turning and profiling applications on CNC lathes and manual turning centers. It is well suited for jobs requiring clean, accurate internal contours at diameters starting from 0.12 inches. The 0.008 inch corner radius supports controlled profile geometry in materials where a defined radius at the cutting edge is required. Typical use cases include finish boring, chamfering, and internal contour work in short-run and production environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-bore applications
• Minimum bore diameter of 0.12 inches enables access to very tight internal features
• Maximum bore depth of 0.59 inches suits shallow-to-moderate internal profiling work
• Right-hand cutting direction for standard lathe setup
• 0.008 inch corner radius for defined internal profile geometry
• Bright finish coating reduces friction and assists chip evacuation

Compatibility

Designed as an OEM-style profile boring bar for use in toolholding systems accepting a 3.00 mm shank diameter, compatible with CNC and manual turning centers configured for small-bore internal profiling work.

Installation Notes

Installation should be performed by a qualified machinist familiar with turning center toolholding systems. Secure the shank firmly in a compatible boring bar holder rated for 3.00 mm shanks and verify that runout is within acceptable tolerance before engaging the workpiece. Always power down and lock out the spindle before changing or adjusting tooling. Do not exceed the maximum bore depth of 0.59 inches, as overextension can cause deflection or tool breakage in solid carbide bars.