Sandvik Coromant 5721437 Indexable Boring Bar 3/4 in Shank

Product Description

The SANDVIK COROMANT 5721437 is an indexable boring bar from the CoroTurn 107 series, designed for internal turning, boring, and profiling operations on CNC lathes and turning centers. The toolholder uses screw clamping to secure a single DCMT 32.52 insert and features a neutral rake angle of 0 degrees for predictable cutting geometry. The steel shank measures 3/4 inches (19.05 mm) in diameter with an overall length of 5.906 inches (150 mm). Coolant-through capability is built in, supporting chip evacuation and tool life in demanding bore-finishing applications. The minimum bore diameter is 0.984 inches (25 mm).

This boring bar is suited for right-hand internal turning operations on small-to-medium diameter bores. Its A-SDXC toolholder style and CoroTurn 107 insert geometry make it appropriate for finish and semi-finish passes in steel, cast iron, and similar workpiece materials. Typical applications include boring, profiling, and turning passes in precision machining environments. The part is sold individually and is intended for use by machinists and tooling technicians in production or job-shop settings.

Key Features

• CoroTurn 107 series A-SDXC style toolholder with screw clamping for secure insert retention
• Coolant-through design to aid chip removal and extend insert life during internal boring
• Neutral rake angle (0 degrees) for versatile cutting performance across bore-finishing passes
• Compatible with DCMT 32.52 inserts with a 3/8 inch (9.53 mm) inscribed circle
• Right-hand cut orientation; center to cutting edge of 0.472 inches (12 mm)
• Multi-use application: boring, profiling, and turning in a single toolholder platform

Compatibility

Designed to accept DCMT 32.52 indexable inserts with a 3/8 inch inscribed circle. Suitable for use in turning centers and CNC lathes requiring a 3/4 inch shank boring bar with a minimum bore entry diameter of 0.984 inches (25 mm).

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before mounting or changing the toolholder. Secure the shank in the tool turret or boring bar holder to the machine manufacturer's specified clamping procedure. Insert seating and clamping screw torque should follow the insert supplier's recommendations for DCMT 32.52 geometry before resuming cutting operations.