Jm Borewells Contractors We are proud to render an exclusive assortment of bore well service, Old Bore Compressor Cleaning Service, Rain harvesting, soil test service, borewells drilling service and borewell cleaning service to our clients. We render these services with the support of our highly experienced professionals using high grade factor inputs with utmost efficiency and speed according to the client requirements. These services are rendered in both standard and customized form to help us to meet the exact requirements of the clients in an efficient manner. Then after the invention of diesel engines, rotary drilling was used to remove cores out of the earth. This was called calex method. Modern techniques applied of air compressors and pneumatic drilling equipments to drill borewells upto 3000 feet.