Value Collection 375-5168 Boring Bar M35 Cobalt 3/4 in

Product Description

The VALUE COLLECTION 375-5168 is a right-hand boring bar designed for precision internal bore operations on the shop floor or machine tool setup. Constructed from M35 cobalt high-speed steel, it delivers improved heat and wear resistance compared to standard M2 tooling, making it suitable for harder workpiece materials and interrupted cuts. The bar accepts a minimum bore diameter of 0.75 inches and reaches a maximum bore depth of 2.25 inches, with a 0.75-inch shank diameter and a 4-inch overall length. Machinists and toolroom professionals use this bar in lathes and boring mills where consistent cutting geometry and rigidity are required.

This boring bar is suited for light to medium-duty internal turning and boring operations in job shops, maintenance machining, and production environments. Its right-hand cutting direction is the standard orientation for conventional lathe setups where the spindle rotates counterclockwise when viewed from the tailstock. The 0.75-inch shank diameter fits standard boring bar holders and turret toolposts designed for that shank size. It is appropriate for use on ferrous and non-ferrous materials where M35 cobalt tooling provides adequate tool life.

Key Features

• M35 cobalt construction for enhanced heat resistance and extended tool life over standard HSS
• Minimum bore diameter of 0.75 inches suits a range of common bore sizes
• Maximum bore depth of 2.25 inches handles moderate-depth internal operations
• Right-hand cutting direction for conventional lathe and boring mill setups
• 0.75-inch shank diameter fits standard toolpost and holder configurations
• 4-inch overall length provides adequate reach without excessive overhang

Compatibility

Designed as an OEM-style replacement or direct-use boring bar for lathes and boring mills equipped with toolholders sized for a 0.75-inch shank diameter boring bar.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and the spindle fully stopped. Secure the shank firmly in the toolholder to the minimum recommended engagement depth to prevent chatter and deflection. Verify tool height alignment to the spindle centerline before cutting. Follow all applicable machine tool safety procedures and shop guidelines during setup.