Hertel 7000073 Indexable Boring Bar 0.77in Right Hand

Product Description

The HERTEL 7000073 is a right-hand A-SWLP indexable boring bar designed for precision internal turning and boring operations on CNC lathes and machining centers. The bar features a 5/8-inch shank diameter and a 10-inch overall length, supporting a minimum bore diameter of 0.77 inches. It accepts WP.. 32.52 inserts secured by a screw-clamp holding method. Through-coolant capability is built in via a 1/8-27 NPT coolant hole, improving chip evacuation and tool life at the cutting edge. Machinists and toolroom technicians working in production or job-shop environments install this bar for tight-tolerance bores where consistent insert indexing and coolant delivery are required.

This boring bar is suited for internal diameter turning on steel and ferrous workpieces in both job-shop and production environments. The -5 degree lead angle and neutral rake promote stable cutting action and predictable insert wear. The 0.406-inch center-to-cutting-edge dimension and back-of-bar-to-cutting-edge measurement of 0.406 inches allow for precise boring of smaller-diameter features where bar clearance is critical. It is appropriate for use on manual lathes and CNC turning centers where a 5/8-inch shank tool holder is available.

Key Features

• Minimum bore diameter of 0.77 inches for small-bore internal turning
• Through-coolant design with 1/8-27 NPT inlet for improved chip removal and tool life
• Screw-clamp insert holding method for secure, repeatable indexing
• Neutral rake angle and -5 degree lead angle for stable cutting performance
• 3/8-inch inscribed circle insert with 5/32-inch insert thickness
• Steel construction for rigidity in standard machining applications

Compatibility

Designed for use with WP.. 32.52 series indexable inserts with a 3/8-inch inscribed circle and 5/32-inch thickness. Fits any machine tool or turret accepting a 5/8-inch round shank boring bar holder.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before installing or indexing the bar. Verify shank clamp torque per the machine tool or tool holder manufacturer specifications. Confirm coolant line connection at the 1/8-27 NPT port is secure and leak-free before running coolant-through operation.