Water diamond drilled holesTricks for dry and wet drilling: Whether dry or wet drilling, do not drill straight at the start. First, angle the drill bit to grind the wall. Note: Press and release the switch, utilizing the inertia during power outages to grind the wall. Once a crescent-shaped groove appears on the wall, gradually straighten the drill bit until it forms a perfect circle. After forming a circle, press the switch and apply gentle pressure.

  Inner Mongolia water drill opening staggered holes project, keep the shoulders tight, hands are only responsible for turning and holding. The downward pressure relies on the shoulders. When the drill reaches the desired depth, pull the drill bit out and insert it back. This motion should be familiar to everyone. The purpose is to pull out the powder inside and avoid increasing the friction on the drill bit. If you feel the drilling speed is very slow, please pull out the drill bit to check for any broken bricks or cement wall scales inside. As you near completion, be mindful to reduce the downward pressure to prevent a sudden push out or breaking through the outer wall.