Sandvik Coromant 5853215 Indexable Boring Bar Left Hand

Product Description

The SANDVIK COROMANT 5853215 is a solid carbide indexable boring bar from the CoroTurn 107 series, designed for internal turning operations on CNC lathes and machining centers. With a minimum bore diameter of 0.4803 inches and a 3/8-inch shank diameter, this bar is built for small-bore precision work. The overall length is 6 inches, the lead angle is -5 degrees, and the neutral rake angle is 0 degrees. Coolant-through capability helps evacuate chips and control heat in deep or tight bore applications. The screw-clamp insert holding method provides rigid, repeatable seating. Installed by machinists and toolroom technicians in production and job-shop environments.

This boring bar is suited for left-hand internal turning in both production and prototype machining scenarios. The CoroTurn 107 series is a recognized platform for small-diameter boring with solid carbide shanks, offering reduced vibration compared to steel-shank alternatives. The bar accepts CCMT 06 02 04 inserts and supports multi-use turning applications where consistent bore geometry is required. Typical installations occur in CNC turning centers where tight tolerances and fine surface finishes are priorities. The coolant-through design makes it well suited for materials that generate significant heat or where chip control is critical.

Key Features

• Solid carbide shank for improved rigidity and vibration dampening in small-bore work
• Coolant-through design supports chip evacuation and thermal management
• Screw-clamp insert holding method for secure, repeatable insert indexing
• Left-hand cut orientation for specific bore direction requirements
• Accepts CCMT 06 02 04 inserts, a widely available grade family
• Multi-use turning designation allows flexibility across compatible bore diameters

Compatibility

Designed for use with CCMT 06 02 04 inserts. Part of the SANDVIK COROMANT CoroTurn 107 series for small-diameter solid carbide boring bar applications.

Installation Notes

Installation and setup should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and all axes are at a safe position before changing or adjusting the boring bar. Verify shank clamping torque per the machine tool manufacturer specifications and confirm insert seating before taking a test cut. Do not exceed the minimum bore diameter rating, as deflection and tool failure risk increase significantly below the rated minimum.