The deepest anyone has drilled into the Earth is the 12,262 meters, when the heat of the Earth’s interior softened the drill bit to the point it couldn’t drill further. The kola borehole is the deepest we have so far dug. 

As profundity increments into the Earth, temperature and pressing factors rise. Temperatures in the covering increment around 15 °C per kilometer, making it unthinkable for people to exist at profundities more prominent than a few kilometers, regardless of whether it was some way or another conceivable to keep shafts open notwithstanding the huge pressing factor.

It's amazingly hot, and it takes a great deal of boring ability to get down there. Bores as of now get inconceivably hot due to the rubbing of the boring cycle, and the high temperatures don't help. The most profound passage is the Kola Superdeep Borehole, which goes down ~12.5km.

People have penetrated more than 12 kilometers (7.67 miles) in the Sakhalin-I. Regarding profundity beneath the surface, the Kola Superdeep Borehole SG-3 holds the world record at 12,262 meters (40,230 ft) in 1989 and still is the most profound fake point on Earth.