Shank is the end of drill bit grasped by chuck. Straight shank is most common style, usually same diameter as drill. Hex shank allows zero manufacturing if made from hex bar stock. Triangle shank provides higher torque transmission with three flats
Homo sapiens discovered rotary tools around 35,000 BC. Bow drills were first machine drills, invented around 10,000 years ago. Core drill developed in ancient Egypt by 3000 BC. Pump drill invented during Roman times. Hollow-borer tip appeared around 13th century
First jigsaws emerged in 19th century with treadle-operated thin blade. Modern portable jigsaw introduced by Scintilla AG in 1947. Albert Kaufmann invented jigsaw in 1946, later acquired by Bosch. Scintilla-Bosch introduced pendulum action in 1966 for faster cutting
Hand plane shapes wood using muscle power with cutting blade. Planes flatten, reduce thickness, and create smooth surfaces. Modern planes made from wood, iron, or bronze. Standard components include mouth, iron, frog, and adjustable depth
Pliers likely evolved from bronze tongs used in Bronze Age Europe. Basic design consists of metal levers joined at fulcrum with gripping jaws. No single inventor can be credited for pliers' invention
Oak trees can be found in forests, identified by light brown trunks. Players need 15-20 oak trees to craft an axe. Wood can be collected by punching and breaking oak trees