Hertel 4006164 Indexable Insert Drill 1-1/4 in 4xd

Product Description

The HERTEL 4006164 is a 4xD indexable insert drill designed for high-productivity hole-making in metal cutting applications. Built on a steel body with a 1-1/4 inch straight cylindrical shank, it accepts two indexable inserts and drills to a maximum depth of 5 inches at a nominal diameter of 1-1/4 inches (1.2500 inches). Coolant-through capability is standard, delivered via a 1/4 inch threaded port at the shank end. Right-hand cutting geometry and insert-based construction allow worn cutting edges to be replaced at the machine without scrapping the drill body. Installation and tool changes are handled by machinists and toolroom technicians in CNC and manual machining environments.

This drill is suited for production drilling in steel, cast iron, and similar materials where consistent hole quality and depth repeatability are required. The 4xD depth-to-diameter ratio supports through-hole and blind-hole operations in parts where a single-pass drill cycle is preferred over peck drilling with solid carbide tooling. Coolant-through delivery helps evacuate chips and manage heat at the cutting zone during extended production runs.

Key Features

• Indexable insert design accepts 2 inserts compatible with HPMT094508-GP geometry
• Coolant-through capability with 1/4 inch shank-end coolant hole thread
• 4xD depth ratio allows drilling to 5 inches maximum depth in a single setup
• Straight cylindrical shank at 1-1/4 inches diameter for standard chuck or collet mounting
• Right-hand cutting direction for conventional CNC spindle operation
• Steel body construction balances rigidity and weight for standard machining centers

Compatibility

Accepts HPMT094508-GP indexable inserts. Compatible drill style designation is HID. Designed as a direct-mount tool for machining centers and lathes equipped with a straight-shank tool holding system sized for 1-1/4 inch shanks.

Installation Notes

Installation is performed by a machinist or toolroom technician following the machine tool manufacturer's tool-change procedure. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the drill body. Confirm coolant-through supply pressure is within the machine's specified range before initiating a drilling cycle. Verify insert seating and fastener torque according to the insert manufacturer's specifications before first use.