Makita 8406 13mm Diamond Core And Hammer Drill. The Makita 8406 13mm Diamond Core And Hammer Drill comes with. Can accept a large diamond core bit 150 mm(5-7/8)in dia. Ideal for making clean-cut, smooth holes. In tiles, ferroconcrete, marble, brick, etc. Heavy duty construction – ideal for site work. Percussion action for drilling pilot hole. Rotary action for dry diamond core drilling. With a large vibration-free rubber side grip. Impacts per Minute (IPM); 0-22500 min. Power Cord Length; 2.5m. No-load Speed (/min); 0-1500.