Scientific Cutting Tools B140250A Boring Bar Solid Carbide

Product Description

The SCIENTIFIC CUTTING TOOLS B140250A is a solid carbide boring bar designed for precision internal turning and boring operations on CNC lathes and machining centers. Built from submicron-grade carbide with an AlTiN+ finish coating, this bar delivers wear resistance and thermal stability in demanding cut conditions. It handles a minimum bore diameter of 0.14 inches and a maximum bore depth of 0.25 inches, making it suited for small-diameter, shallow-bore finish work. The right-hand cutting direction and 3/16-inch shank diameter fit standard boring bar holders used in production machining environments. Overall length is 2 inches.

This boring bar is used in precision machining applications where tight tolerances on small internal diameters are required. Typical scenarios include finishing bores in turned components on CNC lathes or mill-turn centers. The submicron carbide grade and AlTiN+ coating make it appropriate for harder workpiece materials and interrupted cuts where tool life and surface finish consistency are priorities. Machinists and toolroom technicians working in production or job-shop settings are the primary users.

Key Features

• Submicron solid carbide construction for high wear resistance and edge stability
• AlTiN+ finish coating improves thermal and oxidation resistance at the cutting edge
• Minimum bore diameter of 0.14 inches for small-hole internal turning
• Maximum bore depth of 0.25 inches suits shallow-bore finishing passes
• Right-hand cutting direction for standard CNC lathe tooling setups
• 3/16-inch shank diameter fits common small-bore toolholders

Compatibility

Designed as an OEM-style replacement or direct tooling selection for CNC lathes and mill-turn centers using standard 3/16-inch shank boring bar holders with right-hand cutting orientation.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing the boring bar from the toolholder. Ensure the shank is fully seated and clamping screws are tightened to the toolholder specification before running. Inspect the cutting edge for chipping before each use, as carbide tools are brittle and can fracture if mishandled or dropped.