Titan Usa SD91464 Reduced Shank Drill Bit 1 in Hss

Product Description

The TITAN USA SD91464 is a reduced shank twist drill bit designed for drilling applications that require a larger cutting diameter than the machine spindle or chuck can accommodate directly. Manufactured from high-speed steel with a bright, uncoated finish, this bit features a 1-inch cutting diameter paired with a 1/2-inch reduced shank, allowing it to seat in standard 1/2-inch chucks. The 118-degree split-point angle provides a self-centering start and is well suited to general-purpose drilling in steel, cast iron, aluminum, wood, and plastics. The two-flute helical design clears chips efficiently during through-hole drilling. Machinists, maintenance technicians, and fabricators use this bit for production and maintenance drilling where oversized holes are needed without a dedicated large-bore chuck.

The SD91464 fits standard drilling operations in metalworking shops, MRO maintenance environments, and fabrication settings. The reduced shank design makes it compatible with drill presses, milling machines, and portable electric drills equipped with 1/2-inch chucks. Its Series 625 designation places it within TITAN USA's general-purpose high-speed steel line, intended for intermittent and production drilling in ferrous and non-ferrous materials. No pilot hole is required when using this bit on a drill press with proper work-holding, though a center punch is recommended for hand-drill applications to maintain positional accuracy.

Key Features

• 1-inch cutting diameter with a 1/2-inch reduced shank for use in standard 1/2-inch chucks
• 118-degree point angle suits a broad range of metals, plastics, and wood
• High-speed steel construction provides heat and wear resistance during continuous drilling
• 3-inch flute length promotes efficient chip evacuation on deeper passes
• Bright, uncoated finish for compatibility with cutting fluids and easy visual inspection
• Two-flute geometry delivers a balance of cutting speed and chip clearance

Compatibility

Designed as a general-purpose reduced shank drill bit for use in drill presses, milling machines, and 1/2-inch chuck portable drills across metalworking, fabrication, and MRO maintenance applications.

Installation Notes

Secure the 1/2-inch reduced shank firmly in a properly rated chuck before operation and verify chuck key is removed before starting the machine. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend bit life and manage heat buildup. Clamp or fixture the workpiece securely to prevent movement and reduce the risk of bit breakage, especially at breakthrough. Inspection and replacement of worn bits should follow the shop's tooling maintenance schedule.