chisel, burin, graver...

diligent study, devoting oneself to one's studies

to quarry, to cut (timber), to cut and carry off...

to start a fire (with wood-wood friction or by striking metal against stone)

striking sparks with flint and steel or by rubbing sticks together (usu. to start a fire), fire lit by sparks from flint and steel, etc....

boring, punching

striking sparks with flint and steel or by rubbing sticks together (usu. to start a fire), fire lit by sparks from flint and steel, etc....

hand drilling (to start a fire), hand drill, rubbing sticks to make a fire

boring, drilling

boring machine, punching machine, perforator

hand drilling (to start a fire), hand drill, rubbing sticks to make a fire

punched tape, (perforated) paper tape

self-improvement