Titan Usa SD91458 Reduced Shank Drill Bit 29/32 in Hss

Product Description

The TITAN USA SD91458 is a reduced shank twist drill bit designed for drilling operations that require a larger cutting diameter than a standard chuck can accept. The bit features a 29/32 inch (0.9063 inch decimal) cutting diameter paired with a 1/2 inch reduced shank, allowing it to seat in conventional 1/2 inch drill chucks and press quills without requiring a larger machine. Constructed from high-speed steel (HSS) with a bright, uncoated finish, the SD91458 is suited for general-purpose drilling in mild steel, aluminum, plastics, and similar materials. It is installed and used by machinists, maintenance mechanics, pipefitters, HVAC fabricators, and skilled tradespeople working with standard drill presses or heavy-duty hand drills.

The SD91458 fits production and maintenance shop environments where drilling 29/32 inch clearance holes, pilot holes, or access holes is a routine task. It is equally applicable in light industrial settings, mechanical rooms, and fabrication work common to HVAC, plumbing, and electrical trades. The 3 inch flute length provides adequate chip clearance for through-hole drilling in typical plate and tube stock thicknesses encountered in trade applications. The 6 inch overall length gives sufficient reach for recessed or flanged work surfaces.

Key Features

• 29/32 inch cutting diameter (0.9063 inch decimal) with a 1/2 inch reduced shank for use in standard chucks
• High-speed steel construction for durability across mild steel, aluminum, and plastics
• 118-degree split point angle for positive starting and reduced walking on flat stock
• 3 inch flute length for effective chip evacuation during through-hole drilling
• 6 inch overall length for reach in restricted or flanged work areas
• Bright, uncoated finish — Series 625

Compatibility

Designed as an OEM-style replacement or direct-use reduced shank drill bit compatible with any drill press, magnetic drill, or hand drill accepting a 1/2 inch round shank.

Installation Notes

Install in a properly rated drill press or heavy-duty drill with a 1/2 inch keyed or keyless chuck, ensuring the shank is fully seated and secured before operation. Always power down and lock out the machine before changing bits. Use appropriate cutting fluid for ferrous materials to extend bit life and improve hole quality. Follow applicable shop safety standards and wear ANSI-rated eye protection during all drilling operations.