RMT 4608 P and RMT 4611 P Rivet Busters are low-weighted but heavy-duty powerful hammers with teasing throttle. They offer superb control to blow frequency and energy. It comes with a pistol-grip handle with the outside trigger. https://www.rminingtools.com/construction-tools/rivet-buster/rmt-4608-p-rmt-4611-p-rivet-buster