Makita HR2230 SDS+ Rotary Hammer Drill The Makita HR2230 has two operation modes - Rotation only and Rotation with Hammering. They are capable of drilling 22mm diameter hole in concrete. FEATURES Forward/reverse rotation Variable speed trigger Torque limiter - the drill stops when the bit hits against reinforcements Rotary only Rotary hammer Double insulated Built in dust collection system SPECIFICATION Max in Concrete: 22mm Max in Steel: 13mm Max in Wood: 32mm Joules: 2.2Js Blows per minute: 0-4050bpm No Load Speed: 0-1050rpm Net Weight: 2.5Kgs Input wattage: 710W Available In 110v & 240v