Bsc Preferred QJDIB-DB-030 Black Oxide Drill Bit 3/8 in

Product Description

The BSC PREFERRED QJDIB-DB-030 is a 3/8-inch black oxide drill bit precision-ground from high-speed steel for general-purpose drilling. The 135-degree split point eliminates bit walking, allowing accurate starts without center-punching on most surfaces. A corrosion-resistant black oxide finish extends tool life in demanding shop and field conditions. The reinforced core is engineered to resist breakage under lateral stress, making it a reliable choice for electricians, plumbers, HVAC techs, and general contractors who need consistent performance across varied materials.

This bit is suited for drilling into angle iron, wood, and PVC, covering the common material mix encountered on residential and light commercial job sites. It performs well in standard drill chucks and right-angle drill attachments used in tight mechanical spaces. The 3/8-inch diameter is a frequently called-for size for conduit knockout work, joist drilling, and bracket mounting. Sold individually, it fits easily into a trade professional's existing bit inventory.

Key Features

• 135-degree split point prevents walking for accurate hole starts
• Precision-ground high-speed steel construction for consistent cutting performance
• Black oxide finish provides corrosion resistance and reduced friction
• Reinforced core resists breakage under lateral load
• Suitable for angle iron, wood, and PVC drilling
• 3/8-inch diameter covers common trade drilling tasks

Compatibility

Designed as a general-purpose replacement or supplemental bit compatible with standard 3/8-inch and larger keyed or keyless drill chucks used across HVAC, plumbing, electrical, and general construction applications.

Installation Notes

Drill bits of this type are installed and used by licensed tradespeople and general contractors using standard electric or cordless drills. Ensure the drill is powered off and unplugged before inserting or removing the bit from the chuck. When drilling into metal such as angle iron, use appropriate cutting fluid to extend bit life and reduce heat buildup. Always wear eye protection and secure the workpiece before drilling.