Titan Usa SD91455 Reduced Shank Drill Bit 55/64 in Hss

Product Description

The TITAN USA SD91455 is a reduced shank twist drill bit engineered for boring precise holes in metal, wood, and plastic in professional shop and field applications. The bit measures 55/64 inch (0.8594 inch decimal) in cutting diameter and runs a 1/2 inch reduced shank, allowing it to be chucked in standard 1/2 inch drill presses and hand drills without requiring a larger-capacity chuck. Overall length is 6 inches, with a 3 inch flute length. The 118-degree split-point angle provides reliable self-centering on flat and curved surfaces. Constructed from high-speed steel with a bright, uncoated finish, this bit is suited for general-purpose drilling in lower-heat applications.

The SD91455 is appropriate for metal fabrication shops, HVAC sheet-metal work, plumbing rough-in, electrical conduit work, and general mechanical assembly. The reduced shank design is specifically intended for situations where a large-diameter cutting edge is needed but only a 1/2 inch chuck is available on the drill press or portable drill. It is sold individually and fits naturally into a Series 625 tool kit or standalone use by a journeyman or apprentice tech needing a reliable, single-purpose bit.

Key Features

• 55/64 inch cutting diameter (0.8594 inch decimal) for large-bore applications
• 1/2 inch reduced shank fits standard 1/2 inch chucks without upsizing equipment
• 118-degree drill point angle for self-centering on flat and curved surfaces
• High-speed steel construction handles demanding drilling cycles
• Bright, uncoated finish suitable for general-purpose and lower-heat drilling
• 3 inch flute length with 6 inch overall length for reach and chip clearance

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with any 1/2 inch keyless or keyed drill chuck on bench-top drill presses or portable hand drills.

Installation Notes

Installation is performed by any qualified tradesperson or machinist with a 1/2 inch drill press or hand drill. Secure the workpiece firmly before drilling and confirm chuck jaws are fully tightened on the reduced shank before starting the spindle. Use appropriate cutting fluid or lubricant when drilling ferrous metals to reduce heat buildup and extend bit life. Wear ANSI-rated eye protection at all times during drilling operations.