Value Collection 375-5160 Boring Bar M35 Cobalt 3/4 in Shank

Product Description

The VALUE COLLECTION 375-5160 is a right-hand boring bar designed for precision internal boring operations on lathes and boring mills. Constructed from M35 cobalt high-speed steel, this bar offers improved heat and wear resistance compared to standard M2 HSS tooling, making it well-suited for harder workpiece materials. It accepts a minimum bore diameter of 11/16 inches (0.6875 inches decimal) and reaches a maximum bore depth of 2-1/16 inches. The 3/4 inch shank diameter provides rigid, stable clamping in standard boring bar holders. Overall length is 3-13/16 inches. Machinists and toolroom operators use this bar for finishing and semi-finishing bores in ferrous and non-ferrous materials.

This boring bar fits typical lathe and boring mill setups in job shops, production machining environments, and toolroom applications. The right-hand cutting direction means it feeds from right to left in standard orientation. It is appropriate for single-point internal turning where accurate bore diameter and surface finish are required. No special toolholder is needed beyond a standard 3/4 inch boring bar holder.

Key Features

• M35 cobalt HSS construction for increased hardness and heat resistance versus standard HSS
• Minimum bore diameter of 11/16 inches for smaller bore applications
• Maximum bore depth of 2-1/16 inches suitable for moderate-depth internal features
• 3/4 inch shank diameter fits standard boring bar holders without adapters
• Right-hand cutting direction for conventional lathe feed orientation
• Compact 3-13/16 inch overall length reduces overhang and chatter risk

Compatibility

Designed for use in standard 3/4 inch boring bar holders on manual and CNC lathes or boring mills where right-hand internal boring tooling is specified.

Installation Notes

Installation is performed by qualified machinists. Power down and lock out the machine before setting or changing tooling. Secure the shank firmly in the boring bar holder with sufficient clamping length to minimize overhang and reduce vibration. Verify bore diameter and depth settings with appropriate gauging before taking finish passes.