Iscar 2500337 Hfi-mc Indexable Boring Bar 20mm

Product Description

The ISCAR 2500337 is a right-hand HFI-MC indexable boring bar from the Heliface series, designed for internal grooving, recessing, parting, and turning operations on CNC lathes and turning centers. The tool features a 25mm shank diameter, a 200mm overall length, and a minimum bore diameter of 20mm, making it suitable for tight-bore applications where rigidity and reach must be balanced. Inserts are retained by a screw-clamp holding method, ensuring repeatable positioning under interrupted cuts and heavy feeds. Through-coolant capability directs fluid directly to the cutting zone for improved chip evacuation and tool life.

This boring bar is intended for use in production turning environments where grooving and recessing operations are performed in bores starting at 20mm. It accepts DGN, GRIP, and HFPR insert styles, giving machinists flexibility across grooving widths and profiles. The right-hand cutting direction suits standard spindle rotation on conventional CNC turning setups. Applications include internal groove cutting, face grooving, and parting in a range of workpiece materials.

Key Features

• Minimum bore diameter of 20mm (0.7874 inches) for tight-clearance internal operations
• Compatible with DGN, GRIP, and HFPR insert styles for versatile grooving and parting profiles
• Through-coolant design for direct chip evacuation and cutting-zone temperature control
• Screw-clamp insert retention for consistent repeatability and positive insert seating
• 200mm (7.874 inches) overall length with 25mm (0.9843 inches) shank diameter
• Multi-use capability across grooving, recessing, and turning in a single toolholder
• Conforms to ISO 13399 tooling data standards for CAM and tool management integration

Compatibility

Compatible with DGN, GRIP, and HFPR series inserts. Designed for use in machine tool turrets and boring bar holders accepting a 25mm round shank. Suitable for grooving, recessing, and turning applications in CNC turning centers equipped with through-coolant spindle or turret supply.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and the turret is in a safe index position before mounting or changing the toolholder. Confirm shank bore diameter and coolant-through port alignment in the turret before securing. Follow the machine tool manufacturer torque specifications for the toolholder clamping fasteners, and verify insert seating and screw torque per the insert manufacturer guidelines before resuming cutting operations.