Hertel 4006123 Indexable Insert Drill 1-3/4 in 3xd

Product Description

The HERTEL 4006123 is a straight-shank indexable insert drill designed for high-productivity hole-making in metal cutting applications. Built with a steel body and a 1-3/4 inch (44.45 mm) cutting diameter, this drill accepts two indexable inserts compatible with the HPMT125812-GP insert style. It delivers a maximum drill depth of 5-1/4 inches at a 3xD depth-to-diameter ratio, making it well-suited for production drilling where insert changeability and consistent hole geometry are priorities. Coolant-through capability is standard, with a 1/4 inch shank-end coolant hole thread. Right-hand cutting direction is fixed. The tool is intended for use in CNC machining centers and manual lathes by machinists and tool-and-die professionals.

This indexable insert drill is used in metal removal operations across job shops, production machining facilities, and tool rooms. Typical applications include drilling into steel, cast iron, and other ferrous materials where repeatable hole size and depth are required. The straight cylindrical shank with a 1-1/2 inch diameter fits standard toolholders and collet chucks configured for that shank size. The 9.628 inch body length and 5.447 inch flute length provide clearance for chip evacuation in moderate-depth holes. The 1.949 inch collar diameter serves as a positive stop reference in precision setups.

Key Features

• 1-3/4 inch (1.7500 inch decimal) cutting diameter with a maximum drill diameter of 1.803 inches
• Accepts 2 indexable inserts - compatible insert style: HPMT125812-GP
• Coolant-through design with 1/4 inch shank-end coolant hole thread for chip flushing and heat control
• Right-hand cutting direction with straight-cylindrical shank for straightforward toolholder compatibility
• 3xD depth ratio - 5-1/4 inch maximum drill depth suitable for moderate-depth production holes
• Steel body construction for rigidity and durability in ferrous machining environments

Compatibility

Compatible insert style is HPMT125812-GP. Designed for use in CNC machining centers and toolholders accommodating a 1-1/2 inch straight-cylindrical shank.

Installation Notes

Installation and setup should be performed by a qualified machinist. Ensure the machine spindle is fully stopped and the control is in a safe state before mounting or removing the tool from the holder. Confirm toolholder bore size matches the 1-1/2 inch shank diameter and that the tool is secured to the manufacturer-specified clamping torque for that holder type. Verify coolant-through supply is connected and unobstructed before running at full feed rates.