Answer: pickaxe

AnswerCrossword Clue
PICKAXE

Concrete-breaking tool

PICKAXE

Groundbreaking invention

PICKAXE

Miner's tool

PICKAXE
Laborer's tool.
PICKAXE
Coal-miner's tool
PICKAXEDigger's tool
PICKAXEProspecting tool
PICKAXEProspector's need
PICKAXEGround breaker
PICKAXERoot-cutting tool
PICKAXEMining gear