vevor 12inch/305mm core drill machine,4800w core drill rig,powerful rugged diamond concrete core drill,110v 500r/m wet dry concrete brick block drilling machine (drill bit diameter:4.5"/114mm) vevor </br>diamond core drill rig</br></br>key features</br>powerful motor</br>the power is strong and stable, with the max drilling diameter 305mm, and it does not burn the machine for long time use. with smooth speed change, the operation is simple and practical.</br>steel output shaft</br>high-quality steel forged output shaft for water supply. it is capable of being used for a long time and staying constructed.</br>pure copper inlet</br>the inlet is also made of pure copper. so it is made to anti-rust and durable even though it needs to contact water much time while working.</br>large handle for lifting</br>with a large special handle, the lifting can be effortless, stable, and non-shifting will occur.</br>45-degree rotatable base</br>the base support is 45 degree rotatable. aluminum material makes it lighter and steadier. it also means higher accuracy, good durability, and longer lifespan. </br>wide application</br>they are widely used in drilling reinforced concrete, red brick, marble, and other materials. such as installing air conditioners, pipes, stair railings, highways, and airports, etc.</br>specification</br>max drilling diameter: 305mm (12")</br>rated input power: 4800w</br>rated voltage: 110v</br>rated frequency: 60hz </br>speed: 500 r/min </br></br>package content</br>1 x diamond drilling machine</br>1 x diamond bit</br>1 x manual </br>1 x accessory set (1 x ?5 hex socket wrench, 1 x ?6 hex socket wrench, 1 x 17-19 offset spanner, 1 x 200-type trap, 1 x internal expansion bolt, 1 gasket, 1 x set of water pipe + joint, 1 x leakage protector) </br>