| |
 Diamond burns and
carbonized at high temperatures. Water must be provided during drilling
operations to cool the diamond tip.
Use electrical drills appropriate
for the core drill used.
Be sure to turn off the main switch
of the drill and disconnect the power supply plug from the socket before
attaching and detaching the core drills.
Do not touch the core drill, the
shavings, or the drilled hole because they may be hot.
Wear working clothes suitable
for the operation, including eye protection equipment to prevent shavings
from getting into your eyes.
Prepare the working environment
before starting jobs.
Read carefully the instruction
manual for the electrical drill used before use. |
)
)