Dottie BLH3818 3/8" by 18" Bellhanger Drill Bit

Reach and fish low-voltage and security cabling quickly with the Dottie BLH3818 3/8" x 18" Bellhanger Drill Bit. Built for professional installers, this bellhanger bit features an aggressive point for fast penetration in both wood and metal and an 18" length to clear studs and headers while routing surveillance, monitoring and network runs. The tapered flute profile promotes rapid chip removal to reduce binding and produce cleaner holes — important when pulling sensitive CCTV and security sensor wires.

Manufactured from high carbon steel and finished with a black oxide/polished coating, the BLH3818 combines durability with corrosion resistance for dependable performance on repetitive jobs. Whether you’re installing camera systems, access control, or structured cabling, this Dottie drill bit minimizes rework and keeps installations neat and efficient. Packaged for single-item convenience, it’s a smart addition to any low-voltage or security technician’s toolkit. Order the BLH3818 to streamline your next surveillance, networking, or monitoring installation.

• Faster installs: aggressive point and sharp tip drill clean holes quickly, reducing time on security and surveillance runs
• Extended reach: 3/8" diameter and 18" length lets installers fish low-voltage and networking cables through studs and headers without additional tools
• Cleaner cuts: tapered flute design evacuates chips fast to prevent binding and protect delicate monitoring and CCTV wiring
• Durable construction: high carbon steel with black oxide/polished finish resists wear for long service life on job sites
• Purpose-built for cabling: ideal for fishing small-gauge wires in security, surveillance, low-voltage and networking installations