Hertel 02388064 Reduced Shank Drill Bit 1-3/16 in Hss

Product Description

The HERTEL 02388064 is a reduced shank drill bit designed for drilling through low and medium tensile strength materials. It features a 1-3/16 inch cutting diameter with a 1/2 inch straight-cylindrical shank, allowing it to seat in standard half-inch chucks despite its larger cutting size. The 118-degree standard point angle provides a self-centering start without requiring a pilot hole in most applications. Built from high-speed steel with an oxide finish for basic corrosion resistance, this bit is a reliable production-drilling tool for machinists, pipefitters, and general fabrication trades.

This bit suits jobsite and shop applications where large-diameter holes are needed in mild steel, aluminum, brass, plastics, and similar low-to-medium tensile strength workpieces. The 3-inch flute length sets the maximum drilling depth, while the 6-inch overall length gives clearance for standard drill press and handheld drill setups. Its right-hand spiral flute geometry clears chips efficiently during through-hole drilling operations.

Key Features

• 1-3/16 inch cutting diameter with reduced 1/2 inch shank fits standard chucks
• 118-degree standard point angle for general-purpose drilling without pilot hole
• High-speed steel construction for drilling low and medium tensile strength materials
• Oxide finish provides basic surface protection
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• 3-inch flute length supports drilling depth up to 3 inches

Compatibility

Designed for use in standard 1/2 inch keyed or keyless drill chucks on drill presses and heavy-duty handheld drills. Suited for drilling low and medium tensile strength materials including mild steel, aluminum, and similar metals or plastics.

Installation Notes

Installation should be performed by a qualified machinist or tradesperson familiar with large-diameter drill bit operation. Secure the workpiece firmly before drilling and ensure the chuck is fully tightened on the reduced shank. Power down and disconnect the drill press or tool before changing bits. Always use appropriate eye protection and follow applicable shop safety procedures when operating large-diameter bits at reduced spindle speeds.