Value Collection 375-5048 Boring Bar M35 Cobalt 1/2in Shank

Product Description

The VALUE COLLECTION 375-5048 is a right-hand boring bar designed for precision internal boring operations on metalworking lathes and boring machines. Manufactured from M35 cobalt high-speed steel, it delivers improved heat and wear resistance compared to standard M2 HSS tooling, making it well suited for harder workpiece materials and interrupted cuts. The bar accepts a minimum bore diameter of 5/16 inches, reaches a maximum bore depth of 15/16 inches, and mounts via a 1/2 inches shank. Overall length is 2-5/16 inches. This tool is typically installed by machinists and toolroom technicians performing tight-tolerance bore finishing on small-diameter features.

This boring bar is appropriate for light to medium duty internal turning and bore-sizing operations on manual lathes, CNC turning centers, and dedicated boring machines. Its compact geometry suits small-bore work in ferrous and non-ferrous materials where a standard inserted-carbide bar would be too large to fit. The right-hand cutting direction is the standard orientation for conventional lathe rotation. Typical applications include bearing seat bores, bushing fits, and precision through-holes requiring close dimensional control.

Key Features

• M35 cobalt construction for increased hot hardness and wear resistance over standard HSS
• Minimum bore diameter of 5/16 inches enables entry into small-diameter features
• Maximum bore depth of 15/16 inches suits shallow-to-moderate bore lengths
• 1/2 inches shank diameter fits standard lathe tool posts and boring bar holders
• Right-hand cutting direction for conventional lathe rotation
• Compact 2-5/16 inches overall length reduces overhang and vibration risk

Compatibility

Designed as a direct-fit replacement or standard tooling addition for any lathe tool post or boring bar holder accepting a 1/2 inches round shank.

Installation Notes

Installation is performed by qualified machinists. Power down and lock out the machine spindle before securing or adjusting the boring bar in the tool post. Ensure the cutting edge is set on centerline of the workpiece spindle axis before taking a cut. Follow shop safety practices and applicable ANSI machining standards when setting depth of cut and feed rates.