Micro 100 QBB5-2301200X Boring Bar Solid Carbide Altin

Product Description

The MICRO 100 QBB5-2301200X is a solid carbide boring bar designed for internal diameter finishing and semi-finishing operations on CNC lathes and turning centers. It cuts in a right-hand direction and accepts a minimum bore diameter of 0.25 inches, making it suitable for tight-tolerance bore work in small-diameter applications. The shank diameter measures 5/16 inches with an overall length of 2.5 inches. An AlTiN finish coating improves heat resistance and extends tool life in ferrous and hardened materials. This bar is part of the MICRO 100 Quick Change boring tool series and is typically installed by machinists and toolroom professionals working in precision turning environments.

This boring bar is suited for small-bore internal turning applications in job shop, production, and toolroom settings. It handles residential-scale precision work on CNC and manual lathes where bore diameters start at 0.25 inches and maximum bore depth reaches 1.2 inches. The right-hand cutting geometry and tight corner radius of 0.005 inches support fine surface finish requirements in steel, stainless, and hardened workpieces. Professionals running MICRO 100 Quick Change tooling systems will find this bar integrates directly into that platform.

Key Features

• Solid carbide construction for rigidity and vibration resistance in small-bore applications
• AlTiN finish coating increases surface hardness and thermal resistance for longer tool life
• Right-hand cutting direction with 0.25 inch minimum bore diameter
• Maximum bore depth of 1.2 inches with 0.058 inch projection
• Corner radius of 0.005 inches for tight-tolerance surface finish work
• Part of the MICRO 100 Quick Change boring tool series for compatible tooling systems

Compatibility

Designed for use with the MICRO 100 Quick Change boring tool system. Compatible with setups requiring a 5/16 inch shank diameter and a minimum bore diameter of 0.25 inches. Verify quick-change holder compatibility before installation.

Installation Notes

Installation is performed by a qualified machinist. Power down and lock out the machine spindle before inserting or removing the boring bar from the holder. Ensure the shank is fully seated and the set screw or clamping mechanism is torqued per the toolholder manufacturer specifications. Inspect the cutting edge for chips or wear before each use, and confirm bore depth and offset settings match the programmed toolpath before beginning the cut.