Carmex MGR4B1.0L10 Solid Carbide Grooving Tool

Product Description

The CARMEX MGR4B1.0L10 is a solid carbide internal grooving tool designed for precision groove cutting in small-bore applications. Built from micrograin carbide, it delivers consistent cutting performance and edge retention in ferrous and non-ferrous materials. The tool features a 4 mm shank diameter and a 0.040-inch groove width, making it well suited for tight-tolerance grooving operations on CNC lathes and turning centers. Machinists and toolroom operators working in production or job-shop environments rely on this type of tool for clean, repeatable internal grooves in small-diameter bores.

This grooving tool is intended for internal grooving operations where bore access is limited. With a minimum hole diameter of 0.160 inches and a maximum hole depth of 0.390 inches, it is appropriate for small-bore grooving on turned components. It is commonly used in precision machining of hydraulic fittings, valve bodies, and other small-diameter parts requiring internal relief or snap-ring grooves. The 2.000-inch overall length keeps the tool compact for use in confined setups.

Key Features

• Solid micrograin carbide construction for extended tool life and sharp edge retention
• 4 mm shank diameter for compatibility with standard small-bore toolholders
• 0.040-inch groove width for precise internal grooving
• Minimum bore entry of 0.160 inches suits small-diameter workpieces
• Maximum hole depth of 0.390 inches covers typical internal groove reach requirements
• Compact 2.000-inch overall length reduces overhang and vibration risk

Compatibility

Designed as an OEM-style replacement or direct-fit grooving insert tool for standard 4 mm shank internal grooving toolholders used on CNC lathes and turning centers.

Installation Notes

Installation and setup should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the turret is indexed to a safe position before mounting or removing the tool. Secure the shank firmly in the toolholder to the manufacturer-specified clamping torque and verify tool runout before cutting. Follow applicable shop safety procedures and machine manufacturer guidelines when setting tool offsets and cutting parameters.