Titan Usa SD91451 Reduced Shank Drill Bit 51/64 in Hss

Product Description

The TITAN USA SD91451 is a reduced shank twist drill bit machined from high-speed steel (HSS) for drilling through ferrous and non-ferrous metals, plastics, and wood composites. The bit carries a 51/64-inch (0.7969 inch decimal) cutting diameter with a 1/2-inch reduced shank, allowing it to seat in standard 1/2-inch drill chucks even though the cutting diameter exceeds that shank size. A 118-degree point angle suits general-purpose drilling in a wide range of materials. The bright, uncoated finish keeps the surface as-machined, making wear and edge condition easy to inspect in the field. Machinists, maintenance technicians, pipefitters, and general tradespeople are the typical users.

The SD91451 fits Series 625 applications requiring a large-diameter hole without the need for a larger drill chuck. The 3-inch flute length provides adequate chip clearance for moderate-depth holes, while the 6-inch overall length gives reach into recessed work areas. It is suited to benchtop drill presses, magnetic base drills, and handheld corded drills used in industrial maintenance, fabrication shops, plumbing rough-in, and mechanical service work. Sold individually, it is a direct replacement or stock-up option for shops that regularly drill 51/64-inch holes.

Key Features

• 51/64-inch (0.7969 inch) cutting diameter on a 1/2-inch reduced shank for compatibility with standard 1/2-inch chucks
• 118-degree split-point-style angle for general-purpose entry into metal, plastic, and wood composites
• High-speed steel construction resists heat buildup during continuous drilling cycles
• Bright, uncoated finish allows visual inspection of cutting-edge wear
• 3-inch flute length promotes chip evacuation in moderate-depth bores
• 6-inch overall length provides extended reach in confined or recessed work areas

Compatibility

Designed as an OEM-style replacement or stock bit for applications requiring a 51/64-inch reduced shank drill bit with a 1/2-inch shank diameter; compatible with any drill press or handheld drill equipped with a 1/2-inch chuck.

Installation Notes

Secure the 1/2-inch reduced shank fully in the chuck and tighten to the drill manufacturer's specified torque before operation. Always wear appropriate eye protection and secure the workpiece before drilling. Inspect the cutting edges for chipping or heat discoloration before each use; a damaged edge should be resharpened or the bit replaced. Follow applicable shop safety standards and employer protocols when operating drilling equipment.