Piranha Quartz Electric Domeless Banger Nail The perfect option for E-Nails. The Piranha Quartz Electric Domeless Banger Nail, made specifically for E-Nails. Available in sizes 14MM or 19MM with both Male and Female joints. This quartz banger features a deep bucket-style dish. A small handle on the left side of the nail, level with the bottom of the dish, provides a resting place for the coil, which wraps snugly around the bottom half of the dish. Available for 16MM or 20MM coils.