scrutiny; digging into; excavation; inquiry into; enquiry into; prying
excavation; cutting; digging
rock drill; pneumatic drill; jackhammer
lucubration; elaboration; chisel and ax
chisel for making dovetail joints
round peg in a square hole
one should do more than what is literally being asked for; (lit.) when told (to bring) the chisel, (also bring) the mallet