How to judge whether the drill bit is firmly installed after installation?

The following methods can be used to determine whether the drill bit is solid after installation:

Visual Inspection:

Look carefully at the part where the drill bit is connected to the drill rig to see if there is any obvious gap or sign of looseness.

Manual test:

Gently shake or pull the drill bit to feel if there is any obvious movement or looseness.

Idle test:

Let the drill rig idle for a short time and observe whether the drill bit is stable during operation without abnormal shaking or swinging.

Sound judgment:

Listen to the sound when idling, if there is abnormal murmur or impact sound, it may indicate that the installation is not solid.

Load test:

Try drilling under a small load to see if the drill bit remains stable without abnormalities when it is subjected to a certain pressure.