High-Power Pneumatic Drill Prototype

I need a pneumatic drill designed for construction use, with an emphasis on high power output. A working prototype is required. Key Requirements: - Design a pneumatic drill with high power output of 130-200nm... (Budget: £750 - £1500 GBP, Jobs: 3D Modelling, CAD / SolidWorks, CAD/CAM, Engineering Drawing, Manufacturing Engineering, Mechanical Design, Mechanical Engineering, Product Design, Prototyping, Solidworks)