Value Collection 375-5092 Boring Bar M35 Cobalt

Product Description

The VALUE COLLECTION 375-5092 is a right-hand boring bar made from M35 cobalt high-speed steel, designed for precision internal boring operations on metal workpieces. It accepts a minimum bore diameter of 0.4375 inches and a maximum bore depth of 2.1875 inches, making it well suited for shallow-to-medium depth bores in tight tolerances. The 5/8-inch shank diameter seats securely in standard boring bar holders and tool posts. With an overall length of 3-11/16 inches, this compact bar delivers rigidity and reach in a single-piece cobalt construction. Machinists and toolroom technicians install this type of bar on lathes and boring mills for finishing and semi-finishing cuts in ferrous and non-ferrous materials.

This boring bar is used in manual and CNC lathe operations where controlled internal diameter work is required. It is appropriate for job shops, production machining environments, and toolroom applications. The right-hand cutting direction suits standard spindle rotation on conventional lathes. The M35 cobalt steel composition provides increased red hardness and wear resistance compared to standard M2 high-speed steel, which is useful when cutting harder alloys or when higher cutting speeds are required without indexable carbide tooling.

Key Features

• M35 cobalt high-speed steel construction for improved heat and wear resistance
• Minimum bore diameter of 0.4375 inches for tight internal bore applications
• Maximum bore depth of 2.1875 inches suitable for shallow-to-medium depth operations
• 5/8-inch shank diameter for secure, standard holder fitment
• Right-hand cutting direction for standard lathe spindle rotation
• Compact 3-11/16 inch overall length promotes rigidity and reduces deflection

Compatibility

Designed for use in standard boring bar holders and tool posts that accept a 5/8-inch shank diameter, compatible with manual and CNC lathes configured for right-hand cutting tools.

Installation Notes

This boring bar is installed by machinists on lathes or boring mills. Power down and lock out the machine before mounting or removing the bar from the tool holder. Ensure the shank is clamped securely and that the cutting edge is set on center before beginning the bore. Follow the machine manufacturer guidelines and applicable shop safety procedures when setting tool overhang and depth of cut.