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The BSC PREFERRED QJDIB-DB-028A is a 17/64 inch black oxide drill bit precision-ground from high-speed steel for reliable performance across general-purpose drilling tasks. The 135-degree split point tip eliminates walking at the start of a hole, allowing accurate placement without a center punch in most applications. A reinforced core resists bit breakage under load, and the black oxide finish provides corrosion resistance during storage and use. This bit is sold individually and is suited for electricians, plumbers, HVAC technicians, and general contractors who need a dependable drill bit for everyday fieldwork.
The QJDIB-DB-028A is designed for general-purpose drilling into a variety of common materials encountered on job sites. Typical applications include drilling through angle iron, dimensional lumber, and PVC pipe or fittings. Its 17/64 inch diameter is a common size used for fastener pilot holes, conduit anchor points, and through-hole work in light fabrication. The bit is compatible with standard three-jaw drill chucks found on corded and cordless drills.
Designed as a general-purpose replacement or supplemental drill bit for use with standard three-jaw drill chucks on corded and cordless drills rated for high-speed steel tooling.
Install the bit securely into a drill chuck and tighten fully before use to prevent slipping. When drilling metal such as angle iron, apply cutting fluid to reduce heat buildup and extend bit life. Always wear appropriate eye protection when drilling. Disconnect or power down any energized equipment before drilling into panels, enclosures, or structural assemblies per applicable NEC or site safety requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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