Bsc Preferred QJDIB-BODB-047 Black Oxide Drill Bit 5/16in

Product Description

The BSC PREFERRED QJDIB-BODB-047 is a black oxide aircraft-length drill bit designed for deep-hole drilling applications that demand extra reach and precision. Built for use in metal, wood, fiberglass, and stainless steel, this bit features a 135-degree split point tip that self-centers on contact, eliminating bit walk and reducing the need for a center punch. The black oxide coating provides a measure of heat and wear resistance, extending service life in demanding materials. At 5/16 inch in diameter and 12 inches in overall length, it delivers the reach required for through-boring structural assemblies, conduit runs, and multi-layer panel work.

This bit is suited for electricians, HVAC technicians, plumbers, and general tradespeople who need extended-length drilling capability in tight or deep access situations. Common applications include drilling through wall cavities, framing members, composite panels, and multi-layer sheet metal. The aircraft-length profile allows access in areas where standard-length bits fall short, making it a practical addition to a service technician's drill kit.

Key Features

• 135-degree split point tip self-centers and prevents bit walk for accurate starts
• Aircraft-length body at 12 inches provides extra reach for deep or hard-to-access holes
• 5/16-inch diameter suits a wide range of fastener and conduit pass-through applications
• Black oxide finish improves heat resistance and reduces friction during drilling
• Compatible with metal, wood, fiberglass, and stainless steel workpieces

Compatibility

Designed as a general-purpose aircraft-length drill bit compatible with standard 3/8-inch and 1/2-inch keyed or keyless drill chucks commonly used in trade applications.

Installation Notes

Installation is performed by licensed or journeyman tradespeople using standard electric or cordless drills and drill presses. Ensure the workpiece is securely clamped before drilling to prevent movement. When drilling stainless steel or hardened metals, use cutting oil and lower RPM settings to manage heat buildup and prolong bit life. Inspect the cutting edges for wear before each use and replace the bit if the tip shows signs of chipping or dulling.