Bsc Preferred QJDIB-DB-029 Black Oxide Drill Bit 5/16 in

Product Description

The BSC PREFERRED QJDIB-DB-029 is a 5/16-inch black oxide drill bit precision-ground from high-speed steel for general-purpose drilling applications. The 135-degree split point tip prevents walking on contact, allowing accurate starts without center-punching on most surfaces. A corrosion-resistant black oxide coating helps extend tool life in shop and field conditions. The reinforced core geometry resists bit breakage under lateral load. Licensed tradespeople and skilled maintenance technicians reach for this bit when working through metal, wood, angle iron, and PVC in a single session without swapping tools.

This drill bit is suited for residential and light commercial trade work where a single versatile bit covers multiple materials. Common applications include drilling pilot holes in angle iron during HVAC equipment mounting, boring through PVC conduit or pipe, and general wood framing tasks. Its 5/16-inch diameter fits standard 3-jaw chucks on both corded and cordless drills commonly carried by HVAC technicians, plumbers, and electricians on the job site.

Key Features

• 135-degree split point prevents bit walking for accurate, clean starts
• Precision-ground high-speed steel construction for durability across multiple materials
• Black oxide finish provides corrosion resistance in humid or wet working environments
• Reinforced core resists breakage under lateral stress during drilling
• Compatible with standard 3-jaw drill chucks
• Suitable for metal, wood, angle iron, and PVC applications

Compatibility

Designed as a general-purpose 5/16-inch drill bit compatible with standard 3-jaw keyed and keyless chucks on corded and cordless drills used across HVAC, plumbing, and electrical trades.

Installation Notes

Always ensure the drill is powered off and the bit is fully seated and tightened in the chuck before operation. Use appropriate RPM settings for the material being drilled — lower speeds for metal, higher speeds for wood and plastics. Eye protection is required per standard job site safety practice. Secure the workpiece before drilling to prevent rotation or movement during the operation.