Hertel 7000084 Indexable Boring Bar 0.6in Left Hand

Product Description

The HERTEL 7000084 is a left-hand indexable boring bar designed for precision internal turning operations on CNC lathes and boring machines. Built from steel with a neutral rake angle of 0 degrees, this toolholder uses the A-STFP style to accept TP.. series inserts secured by a screw clamping method. The 0.5 inch shank diameter and 8 inch overall length give it reach and rigidity suited for moderate-depth bores. A through-coolant channel with a 1/16-27 NPT threaded port delivers cutting fluid directly to the insert tip, extending tool life and improving chip evacuation during continuous cuts.

This boring bar is suited for machine shops and production turning cells where left-hand internal boring is required. The 0.6 inch minimum bore diameter makes it appropriate for small-diameter internal features. Machinists and CNC setup technicians working on ferrous and non-ferrous workpieces will find the neutral rake geometry and screw-lock insert retention reliable for finishing and light semi-finishing passes. The through-coolant capability is particularly useful in deep-bore applications where flood coolant alone does not reach the cutting zone effectively.

Key Features

• Left-hand A-STFP toolholder style for internal boring operations
• Accepts TP.. series indexable inserts with screw clamping retention
• Through-coolant design with 1/16-27 NPT coolant hole for directed chip and heat control
• Neutral rake angle (0 degrees) for stable cutting across a range of materials
• 0.6 inch minimum bore diameter with 0.312 inch back-of-bar to cutting edge clearance
• Steel construction for rigidity and vibration resistance

Compatibility

Designed for use with TP.. series indexable inserts featuring a 1/4 inch inscribed circle and 3/32 inch insert thickness, installed in A-STFP style toolholder setups.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Secure the shank fully in the tool turret or boring bar holder before engaging the workpiece, and verify insert seating and screw torque per the insert manufacturer guidelines. Connect the through-coolant port to the machine coolant supply using compatible 1/16-27 NPT fittings before beginning the cut. Always verify bore clearance and tool runout before taking the first pass.