Titan Usa SD91442 Reduced Shank Drill Bit 21/32 in

Product Description

The TITAN USA SD91442 is a reduced shank twist drill bit designed for drilling through metal, wood, and plastics where a standard shank would not fit a 1/2-inch chuck. The bit measures 21/32 inches (0.6563 inches decimal) in diameter with a 1/2-inch reduced shank, allowing it to seat in standard 1/2-inch drill chucks despite the larger cutting diameter. Overall length is 6 inches with a 3-inch flute length, and the 118-degree split point angle suits general-purpose drilling in a wide range of materials. Manufactured from high-speed steel with a bright uncoated finish, this Series 625 bit is suited for machinists, maintenance technicians, and metalworking professionals.

The SD91442 is used in production and maintenance drilling applications where hole diameters exceed the capacity of the available chuck. The reduced shank design makes it compatible with standard 1/2-inch drill chucks without requiring a larger chuck upgrade. Typical applications include drilling clearance holes, pilot holes, and through-holes in ferrous and non-ferrous metals as well as wood and composite materials. It is a practical choice for general shop use, field maintenance, and fabrication work.

Key Features

• 21/32-inch cutting diameter with 1/2-inch reduced shank fits standard 1/2-inch chucks
• 118-degree point angle for general-purpose drilling across multiple materials
• High-speed steel construction resists heat buildup during drilling
• Bright uncoated finish for straightforward inspection and regrinding
• 6-inch overall length with 3-inch flute length provides adequate chip clearance
• 2-flute design for efficient chip evacuation in through-hole drilling

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with any 1/2-inch keyed or keyless drill chuck on standard drill presses, handheld drills, and magnetic base drills.

Installation Notes

Secure the 1/2-inch reduced shank firmly in the chuck jaws before drilling and verify the bit runs true with no visible wobble. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and reduce heat. Always wear eye protection and clamp workpieces securely to prevent rotation during drilling. Inspect the cutting edges before use and recondition or replace the bit if the point shows signs of wear or chipping.