Step 1: Prepare the tools.

As the saying goes, if a worker wants to do a good job, he must sharpen his tools first. In the case of insufficient tools at hand, we need to make a "cooling device" by hand. Means of production can be seen everywhere: 1, water; 2, beverage bottles; 3. Needle or 2mm drill bit.

Step 2: Manufacture the cooling device.

Find a beverage bottle, drill a small hole in the outer edge of the bottom of the bottle with a needle or drill, and then fill the beverage bottle with water; When the beverage bottle filled with water is suspended, a small water column will flow out of the small hole, and the cooling device will be completed.

Step 3: Adjust the speed of the electric drill.

Loosen the electric drill chuck with the key and lock the emery punching needle; Connect the electric drill to the power supply, adjust the direction to clockwise and forward rotation, and rotate at medium speed for standby.

Step 4: Drilling.

Hold a small electric drill in your left hand and hold the touch switch tightly; Holding the agate to be processed in the right hand, slowly approaching the high-speed and stable rotating punching needle to the position to be punched under the scouring of the small water column flowing out of the plastic bottle.

Note: When drilling, try to let water flow on the needle of the drilling needle.

Step 5: finely grind the hole and open it.

Agate drill is a time-consuming and laborious slow work; In addition, agate is expensive, hard and fragile. In the process of manual DIY, we must be determined not to be impatient. Take out the water mill and slowly deepen the needle until the hole is completely opened.

Finally, note:

The high-speed rotating punching needle will jump a little as soon as it touches the jade surface. In order to prevent unnecessary scratches, you can carve a shallow round nest on the jade surface with "emery nail thallium" in advance.