Makita 13 lb Demolition Hammer accepts 3/4" Hex bits - HM0810B Description: The Makita 8.3 AMP Demolition Hammer (model HM0810B) is built around a powerful motor that delivers up to 5.6 ft.lb. of impact energy (7.6 Joules) and 2,900 BPM for fast, efficient work. An anti-vibration spring works in concert...