Iscar 4550981 Indexable Boring Bar 8mm Bore Ihaxf-e

Product Description

The ISCAR 4550981 is a solid carbide indexable boring bar in the IHAXF-E series, designed for internal boring operations on CNC lathes and turning centers. It accepts TPGX 73.. triangular inserts held by screw clamping, delivering positive rake geometry for clean, low-force cuts in small-bore applications. The bar features through-coolant delivery, directing fluid directly to the cutting zone to extend insert life and aid chip evacuation. With an 8mm minimum bore diameter and a maximum bore depth of 59.99mm, it is suited to tight, deep-bore work where tool clearance and rigidity are critical.

This boring bar is intended for use in precision metal-cutting environments, including aerospace, automotive, and general machining shops running small-bore internal turning operations. It is compatible with IHAXF-E style toolholders and TPGX 73.. inserts, making it a direct fit for shops already running tooling in that insert family. The 3-degree lead angle supports fine surface finish requirements. Licensed machinists and CNC operators working with ISO-compliant tooling systems will find this bar integrates directly into existing setups built around the Itsbore series.

Key Features

• 8mm minimum bore diameter with a 10.01mm maximum bore diameter for tight-tolerance internal turning
• Maximum bore depth of 59.99mm (2.362 inches) for deep-bore reach
• Through-coolant design directs coolant to the cutting edge, reducing heat and improving chip control
• Positive rake cutting geometry reduces cutting forces and tool pressure
• Screw-clamp insert holding provides rigid, repeatable insert seating
• Conforms to ISO 13399 tooling data standards for compatibility with CAM and tool management systems

Compatibility

Designed for use with TPGX 73.. triangular inserts and IHAXF-E style toolholders within the ISCAR Itsbore series. Compatible insert size code is 73.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the turret is in a safe index position before mounting or removing the bar. Confirm through-coolant passages are clear and the coolant supply pressure matches the machine tool specification before running. Follow the insert manufacturer torque recommendations for the screw-clamp when seating TPGX inserts.