Bsc Preferred QJDIB-DB-027A 15/64 in Black Oxide Drill Bit

Product Description

The BSC PREFERRED QJDIB-DB-027A is a 15/64-inch black oxide drill bit precision-ground from high-speed steel for general-purpose drilling applications. The 135-degree split point tip prevents walking at the start of a hole, reducing the need for a center punch on most materials. A corrosion-resistant black oxide finish extends tool life, and the reinforced core reduces breakage under load. Tradespeople and experienced DIYers reach for this bit when drilling through angle iron, wood, PVC, and similar materials where a reliable, accurate hole is required without specialty tooling.

This drill bit is suited for residential and light commercial jobsite use. Electricians, plumbers, HVAC technicians, and general contractors use bits in this size range when routing conduit, pipe, or equipment-mounting hardware through structural and finish materials. The 15/64-inch diameter makes it a common choice for pilot holes and clearance holes in standard fastener applications across a variety of trade disciplines.

Key Features

• 135-degree split point prevents bit walking for accurate hole starts without a center punch
• Precision-ground high-speed steel construction for consistent cutting performance
• Black oxide finish provides corrosion resistance and extends service life
• Reinforced core geometry resists bit breakage under drilling load
• Suitable for angle iron, wood, PVC, and general-purpose materials

Compatibility

Designed as a general-purpose replacement or supplemental drill bit compatible with standard 3-jaw drill chucks accepting straight-shank bits in the 15/64-inch size.

Installation Notes

Licensed tradespeople should secure the workpiece before drilling to prevent movement and wear appropriate eye protection per jobsite safety requirements. Confirm the drill chuck is fully tightened before operation. When drilling metal such as angle iron, use cutting fluid or lubricant to reduce heat buildup and extend bit life. Do not force the bit at excessive feed rates, as this can cause tip failure or workpiece damage.