Drillsaw

"'...Malleable pipes of bronze metal hung from the bottom of the contraption and dragged along the grated walkway, leading back to some sort of valve system in the walls. The drill bit—which was easily the length of Balla’s arm—protruded aggressively from the metal chassis. It was the Drillsaw, as the miners of Anchorhead affectionately called it...' - Nocturnes: A Prologue"The Drillsaw is a hand-held, steam-powered drill typically used for heavy-mining in tight areas in which larger machines can't safely enter.