Micro 100 QBB-100700X Boring Bar Solid Carbide Right Hand

Product Description

The MICRO 100 QBB-100700X is a solid carbide boring bar designed for precision internal turning and bore finishing operations on CNC lathes and manual turning centers. With a minimum bore diameter of 0.1000 inches and a maximum bore depth of 0.7000 inches, this bar is built for small-diameter, tight-tolerance work. The 3/16-inch shank diameter keeps the tool profile compact, and the solid carbide construction delivers the rigidity and wear resistance needed to hold dimension in demanding materials. Overall length is 2.0 inches. This tool is intended for machinists and toolroom professionals running production or prototype turning work.

The QBB-100700X suits applications where small bore diameters require a right-hand cutting bar with a short, rigid profile. Typical use cases include finishing bores in hardened or abrasive workpiece materials, producing close-tolerance holes in small turned components, and situations where a high-speed steel tool would deflect or wear prematurely. The right-hand cutting direction is compatible with standard spindle rotation on conventional CNC and manual lathes.

Key Features

• Solid carbide construction provides rigidity and resistance to deflection in small-bore applications
• Minimum bore diameter of 0.1000 inches enables work on very small internal features
• Maximum bore depth of 0.7000 inches suits through and blind bore finishing
• Right-hand cutting direction for standard spindle rotation
• 3/16-inch shank diameter fits compact toolholders and turret stations
• 2.0-inch overall length keeps overhang minimal and chatter resistance high

Compatibility

Designed as a direct-fit solid carbide boring bar for CNC lathes and manual turning centers accepting a 3/16-inch shank toolholder or boring bar holder.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the control is in E-stop or locked out before seating or removing the bar from the toolholder. Confirm the shank is clamped securely with appropriate set screws or collet pressure to prevent pull-out under cutting load. Verify bore diameter and depth clearances against the workpiece setup before initiating a cut.