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The SCIENTIFIC CUTTING TOOLS PCD-B140500 is a diamond-tipped corner radius boring bar designed for precision internal boring operations on small-diameter bores. It features a minimum bore diameter of 0.14 inches and a maximum bore depth of 0.5 inches, making it well-suited for tight, shallow bores that demand consistent surface finish and dimensional accuracy. The 0.004-inch corner radius helps control the transition at the base of the bore. With a 3/16-inch shank diameter and a 2-inch overall length, this bar is compact and rigid. The bright, uncoated finish on the shank preserves close tolerances in tool holders. Right-hand cutting direction is standard for conventional lathe setups.
This boring bar is intended for use on CNC lathes and manual turning centers where small-bore, high-precision work is required. The diamond-tipped (PCD) cutting geometry makes it appropriate for non-ferrous materials such as aluminum, copper alloys, and composites where long tool life and fine surface finish are priorities. It is commonly installed by machinists and toolroom professionals working in production or job-shop environments requiring repeatable bore quality at small diameters.
Designed as an OEM-style replacement or direct tooling selection for CNC lathes and manual turning centers accepting a 3/16-inch round shank boring bar.
Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the spindle before securing the bar in the tool holder. Ensure the shank is clamped to the recommended engagement depth and that the cutting edge is set on centerline with the workpiece axis. Confirm proper coolant or lubrication practice for the workpiece material before initiating the cut.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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