Hertel 7000074 Indexable Boring Bar 0.93 in Right Hand

Product Description

The HERTEL 7000074 is a right-hand indexable boring bar designed for precision internal diameter machining on metal cutting equipment. Built with an A-SWLP toolholder style and a 0.93 inch minimum bore diameter, this bar accepts WP..1.51.21 series inserts secured by a screw-holding method. The 10 inch overall length and 3/4 inch shank diameter make it a practical choice for medium-reach boring operations. A through-coolant design with a 1/8-27 NPT coolant hole thread keeps cutting temperatures under control and extends insert life. The steel body delivers the rigidity needed for stable, repeatable cuts in production and job-shop environments.

This boring bar suits CNC lathes, turning centers, and manual boring setups where internal diameter work requires a right-hand holder. The -5 degree lead angle and neutral 0 degree rake angle are suited to general-purpose steel, cast iron, and non-ferrous boring applications. Machinists and toolroom technicians running production runs or one-off precision bores will find this bar compatible with standard A-SWLP insert programs. It is typically installed in live or static tool holders on CNC turning centers or in boring head setups on machining centers.

Key Features

• 0.93 inch minimum bore diameter for small-to-medium internal diameter work
• A-SWLP toolholder style accepts WP..1.51.21 indexable inserts
• Through-coolant capability with 1/8-27 NPT coolant port for heat and chip management
• Screw-type insert holding method for secure, repeatable insert indexing
• Neutral rake and -5 degree lead angle for stable cutting geometry
• Steel body construction for rigidity and durability

Compatibility

Designed for use with WP..1.51.21 series A-SWLP indexable inserts with a 3/8 inch inscribed circle and 5/32 inch insert thickness.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle and toolholder are powered down and locked out before mounting the bar. Verify shank diameter compatibility with the tool block or boring head before clamping, and confirm coolant line connections match the 1/8-27 NPT port before enabling through-coolant flow. Follow the machine manufacturer torque specifications for shank clamping screws.