Hertel 02388080 Reduced Shank Drill Bit 1-7/32 in Hss

Product Description

The HERTEL 02388080 is a reduced shank drill bit designed for drilling into low and medium tensile strength materials. The bit measures 1-7/32 inches (1.2188 inches decimal) in cutting diameter with a 1/2 inch straight-cylindrical shank, allowing it to chuck into standard 1/2 inch drill chucks despite the larger cutting diameter. Overall length is 6 inches with a 3 inch flute length. Constructed from high-speed steel with an oxide finish, this bit suits production and maintenance drilling in metal fabrication, HVAC, plumbing, and electrical trade work where oversized holes are required without a larger chuck capacity.

This drill bit fits residential and commercial applications where hole sizes in the 1-7/32 inch range are needed in mild steel, aluminum, copper, brass, and similar low to medium tensile strength materials. The reduced shank design makes it practical on standard 1/2 inch capacity drill presses, magnetic drills, and hand drills. It is a common choice for trade professionals drilling conduit knockouts, pipe holes, and sheet metal penetrations where a full-shank bit of this diameter would require a larger machine.

Key Features

• 1-7/32 inch (1.2188 inches decimal) cutting diameter with 1/2 inch reduced shank for standard chuck compatibility
• High-speed steel construction for durability in ferrous and non-ferrous metals
• 118-degree standard point angle for general-purpose drilling applications
• Right-hand spiral flute with regular spiral type for efficient chip evacuation
• Oxide finish for mild corrosion resistance and reduced friction during cutting
• 3 inch maximum drilling depth with 6 inch overall length

Compatibility

Designed for use in low and medium tensile strength materials including mild steel, aluminum, copper, and similar metals. Fits any 1/2 inch capacity drill chuck due to the reduced straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist or trade professional familiar with drilling equipment. Secure the workpiece firmly before drilling and operate at a spindle speed appropriate for the bit diameter and material. Ensure the drill chuck is tightened properly on the reduced shank before operation. No coolant is specified for this bit, but chip clearing and feed rate control are important when drilling at this diameter.