Value Collection 375-5072 Boring Bar M35 Cobalt Right Hand

Product Description

The VALUE COLLECTION 375-5072 is a right-hand boring bar machined from M35 cobalt high-speed steel, designed for internal bore finishing and enlargement operations on metalworking lathes and boring machines. The M35 cobalt alloy provides enhanced heat resistance and edge retention compared to standard M2 high-speed steel, making it well suited for tougher ferrous materials and interrupted cuts. With a minimum bore diameter of 0.5 inches, a maximum bore depth of 1.5 inches, and an overall length of 2.875 inches, this bar fits compact tooling setups where clearance is limited. Machinists and toolroom technicians are the primary users of this tool.

This boring bar is intended for use in manual and CNC lathe operations, toolroom work, and production machining environments where precise internal diameter control is required. It fits standard 0.5-inch shank tool holders and quick-change toolpost systems commonly found on engine lathes and turret lathes. The right-hand cutting direction makes it compatible with conventional spindle rotation in standard lathe setups. It is suited for both light finishing passes and moderate material removal on ferrous and non-ferrous workpieces.

Key Features

• M35 cobalt high-speed steel construction for improved heat resistance and edge retention
• Right-hand cutting direction for use with standard lathe spindle rotation
• 0.5-inch minimum bore diameter accommodates tight internal bore applications
• 1.5-inch maximum bore depth suitable for shallow-to-moderate bore lengths
• 0.5-inch shank diameter fits standard tool holders and quick-change toolpost blocks
• Compact 2.875-inch overall length for use in space-limited tooling setups

Compatibility

Designed as an OEM-style replacement and standard toolroom boring bar for use with 0.5-inch shank tool holders on manual and CNC engine lathes and turret lathes.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the shank firmly in the tool holder and verify zero overhang beyond what is required for the bore depth to minimize chatter. Always bring the spindle to a complete stop before adjusting tool position or removing the bar from the holder. Follow applicable shop safety procedures and machine manufacturer guidelines when setting cutting parameters.