Hertel 7000060 Indexable Boring Bar 2.4in Bore Right Hand

Product Description

The HERTEL 7000060 is a right-hand A-MTFN indexable boring bar designed for internal turning and boring operations on CNC lathes and machining centers. Built from steel with a 2.0-inch shank diameter and a 16-inch overall length, this bar accepts TN-style inserts held by screw or clamp and is rated for a minimum bore diameter of 2.4 inches. Through-coolant capability is integrated via a 1/4-18 NPT coolant hole, directing fluid directly to the cutting zone for improved chip evacuation and tool life. The negative rake geometry at 5 degrees suits heavy interrupted cuts and tough ferrous materials. Machinists and toolroom technicians working with production-diameter bores will find this bar suited to applications demanding rigidity and precision.

This boring bar is intended for use in metalworking environments where large-diameter internal features require tight tolerances. Its 2.0-inch steel shank provides the rigidity needed to minimize deflection during deep-reach boring passes. The A-MTFN toolholder style positions the insert at a specific lead angle for efficient radial force management. The back-of-bar to cutting edge and center-to-cutting-edge dimensions are both 1.281 inches, giving machinists reliable reference points for tool offset entry. The bar accepts half-inch inscribed circle TN inserts with a 3/16-inch thickness, a common size stocked by most industrial tooling distributors.

Key Features

• A-MTFN toolholder style with negative rake at 5 degrees for stability in ferrous and hard materials
• Through-coolant design with 1/4-18 NPT coolant port for directed flood cooling at the insert tip
• 2.0-inch steel shank minimizes bar deflection during deep or heavy-duty boring passes
• Accepts TN-style inserts with 1/2-inch inscribed circle and 3/16-inch thickness held by screw or clamp
• 1.281-inch center-to-cutting-edge dimension supports precise tool offset programming
• MSC/Manufacturer cross-reference number A32MTFNR/L4 for sourcing and documentation purposes

Compatibility

Designed as an OEM-style indexable boring bar accepting TN-style inserts with a 1/2-inch inscribed circle and 3/16-inch thickness. No specific machine model compatibility was stated in the product data; confirm spindle clearance and shank fit before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine powered down and in an e-stop or lockout-tagout state per facility safety procedures. Confirm the shank bore in the turret or holder is clean and within tolerance before seating the bar. Engage through-coolant plumbing at the 1/4-18 NPT port before final tool offset entry. Do not exceed the minimum bore diameter specification of 2.4 inches, as contact with the bore wall below this diameter may damage the insert or shank.