Disc

Ratchet drilling machine with a twisted auger, used in mining

Hand-shot hole drill with three twisted augers, used in mining

Drill for working turquoise, with shaft and cross-piece of pale wood, point of obsidian lashed on with thong, and whorl of painted pottery: North America, USA, New Mexico, Pueblo of Cochiti

Drill bow of walrus ivory engraved with figures commemorating a hunting expedition: Alaska, USA, North America, Iñupiaq or Yup'ik

Bow drill, of walrus ivory, engraved on both sides with figures of men and animals: North America, USA, Alaska, Inupiat, 19th century

Bow drill, of walrus ivory, engraved on both sides with hunting scenes: North America, USA, Alaska, Inupiat, 19th century

Wooden drill from a set of fire-making sticks (gillingharra): Australasia, Australia, Western Australia, Pilbara, Sherlock River, possibly Ngarluma or Yindjibarndi, late 19th century

Rotary drill consisting of a wooden spindle with a point of flint, and a wooden bow with coconut fibre string: Melanesian, New Caledonia

Drill bits, twenty-six in a Dormer Brand display, from the ironmonger workshop of James Sime of Falkirk, by The Sheffield Twist Drill and Steel Co. Ltd, mid 20th century

Full scale Ingersoll-Rand part of coal cutter, possibly a hydraulic pick/steam pick/jack hammer, on a wooden stand

Drill, Mandrillus leucophaeus (F. Cuvier), mount and skeleton, adult male

Drill, Mandrillus leucophaeus (F. Cuvier), skull, mandible, male, Cameroon

Drill bow, of curved form, of bone, incised on back with transverse lines and pitted at one end, with leather thong attached: North America, Canada, Nunavut, Inuit, mid 19th century

Drill, of whale ivory, with iron point inset, for use with a drill bow: North America, Canada, Nunavut, Inuit, mid 19th century