Hertel 02388098 Reduced Shank Drill Bit 1-15/64 in Hss

Product Description

The HERTEL 02388098 is a reduced shank twist drill bit designed for drilling into low and medium tensile strength materials including mild steel, aluminum, and similar workpiece materials. Built from high-speed steel (HSS) with an oxide finish, it features a 1-15/64 inch (1.2344 inch decimal) cutting diameter paired with a 1/2 inch straight-cylindrical shank, allowing it to seat in standard 1/2 inch drill chucks despite the oversized cutting diameter. The 118-degree standard point angle suits general-purpose drilling across a wide range of shop and field applications. Overall length is 6 inches with a 3-inch flute length and right-hand cut spiral flutes.

This bit is suited for machine shop, maintenance, and fabrication environments where a large-diameter hole is required but chuck capacity is limited to 1/2 inch. The reduced shank design makes it compatible with bench drill presses, floor-standing drill presses, and hand-held electric drills equipped with 1/2 inch chucks. Typical applications include drilling clearance holes, pilot holes for tapping, and general metalworking operations on low to medium tensile strength stock. No coolant system is required for standard use.

Key Features

• 1-15/64 inch cutting diameter with a reduced 1/2 inch straight-cylindrical shank for compatibility with standard 1/2 inch chucks
• High-speed steel construction for durability in metalworking and general fabrication use
• 118-degree standard point angle for general-purpose drilling in low and medium tensile strength materials
• Oxide finish provides light corrosion resistance and reduces friction during drilling
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• 3-inch maximum drilling depth at a 6-inch overall length

Compatibility

Designed for use with 1/2 inch drill chucks on standard bench or floor drill presses and 1/2 inch hand-held electric drills. Intended for drilling low and medium tensile strength materials.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tradespeople familiar with rotating cutting tools. Secure the workpiece firmly before drilling and ensure the reduced shank is fully seated and tightened in the chuck before operation. Wear appropriate eye protection and follow shop safety protocols. Inspect the cutting edge for wear or damage before each use and replace if the edge is compromised.