S.P.Technomac is the Best Core drill machine supplier in the industry. | Core drill machine | which is located in Pune, Maharashtra. Contact Us:8055436515. S.P. Technomac is a leading Best Core Drill Machine Supplier, Manufacturer, Suppliers in Pune, India. The purpose of core drilling is to obtain a complete, undisturbed sample that is representative of the material in situ. Coring is the most frequent method of obtaining samples of soft rock and cemented soil, which can be found all over the world.