Shellfish have several ocean predators, but what you are most likely seeing are holes created by the beaks of sea gulls.
Drills are for making accurate holes in material
and hand drill drills holes into woods
For cutting round holes.
It drills holes into the ground.
and hand drill drills holes into woods
In agriculture and construction projects, different types of soil drills are used, including auger drills, rotary drills, and percussion drills. Auger drills are commonly used for shallow holes, rotary drills are used for deeper holes, and percussion drills are used for hard or rocky soil. Each type of drill has specific advantages and is chosen based on the soil conditions and the depth of the hole needed.
it is used for drilling holes in materials such as metal.
To drill holes in bone or wood.
the hammer function on drills is used with a masonary bit and used to drill holes in brick or concrete block.
Diamond tipped drill bits
A Forstner bit drills flat bottom holes.
Oyster drills