I am a Primitive Man

Mu Mu is a very patient and stubborn person, otherwise he would not be smashing against the stone all day long, and he would never get tired of it.

Although the task entrusted by Shenzi was arduous, he did not shrink back. After sitting there for a while, he found a stone and began to knock on the circle that Han Cheng had circled on the stone bar.

In any case, you still have to do it yourself, sitting there imagining, it is impossible to think of a eye on the stone strip.

Papa...

There was a sound of knocking. After the stone was hit, there was a pungent smell, and stone chips flew out. Gradually, shallow pits appeared on the stone strips.

Wood's work was stopped by Han Cheng.

It's not that the wood is not made carefully enough, but that the hole dug out by this percussion method is the kind of cone with a large outside and a small inside.

In this way, even if the stone hole is finally made out, it is still not suitable for the handle of the shovel.

Because the weight and volume of the stone shovel are placed there, the handle of the shovel should not be too thin, at least two and a half centimeters in diameter.

According to the current method of wood, a hole with a diameter of two and a half centimeters is made on the stone bar, and the top is almost chiseled to the edge of the stone bar...

This kind of hoe is used to plan the ground, and its fate is similar to that of a bone pick. Basically, it will break from the place where the wooden handle is attached after a few hits...

The best way is to use a drill bit to drill holes in it, so that the drilled holes are generally thick inside and out.

Drilling holes in stone requires a metal drill...

This alone is enough to make Han Cheng helpless.

If he could make metal drill bits, where would he make stone drill bits?

It would be nice to build one directly out of steel.

Is it possible that we can only use a bone shovel to dig the land in the future?

Han Cheng frowned.

Then he smiled helplessly, and when he came over by himself, he got on the drill hole.

Last time it was wood,

This time it's with Shishi, which is really fate.

Wood is also frowning.

The man who had been so patient now felt very lost.

Because, as the number one stonemason of the Qingque Tribe, he couldn't meet the requirements of the Son of God, and couldn't drill a suitable hole in the stone...

As the second senior brother's condition improved day by day, Wu felt relaxed and was in the mood to lick the rabbit again. When he found out Han Cheng's distressed state, he took a rabbit he had trained to be honest, licked it all the way over, and asked.

Han Cheng spoke out about his difficulties, and Wu felt very sorry after hearing this.

The bone shovel that can dig the ground is already very useful in his opinion, and the shovel mentioned by Shenzi is more suitable for digging the ground than the bone shovel, especially the kind of hard ground.

Knowing that there is such a tool that is of great benefit to the tribe, but can't make it, it's a pity for a person like Wu who has nothing to do with the tribe.

He couldn't help with the matter of drilling holes in the rocks. The most intelligent son of the tribe and the wood who dealt with the most stones were helpless about this matter, let alone him.

Do you have to use a metal drill bit to drill holes in stone?

How did the holes in the stone tools from long ago come out?

Han Cheng, who had been thinking about how to get some steel out, found that he seemed to have entered a misunderstanding.

No one said that metal drills are the only way to drill holes in stones!

Just don't use metal drill bits and what material tools and methods should be used?

Yes!

Han Cheng, who couldn't sleep with Bai Xuemei in his arms at night, suddenly cried out excitedly.

It's not that Bai Xuemei has it, but that he has a way to drill holes in rocks.

Bai Xuemei, who was sleeping soundly, was woken up by Han Cheng's voice, and asked Han Cheng what happened in a daze.

Han Cheng smiled and hugged her upstairs, said it was all right, and let her continue to sleep.

Bai Xuemei, who was hugged by Han Cheng, felt relieved and soon fell asleep.

Han Cheng didn't sleep. If it wasn't midnight, he would run out and start working according to the method he thought of.

Unable to sleep at night, and holding a child bride-in-law in his arms, Han Cheng's hands will certainly not be idle.

Han Cheng is now deeply impressed by his wisdom and foresight.

After changing her name to Bai Xuemei, the place where the child's bride-in-law should grow flesh finally began to grow flesh.

Although the scale is small and young, but at least it is not a flat river.

Chanting Yang Wanli's famous poem The little lotus just showed its sharp horns, and the dragonfly stood on its head a long time ago, Han Cheng fell asleep.

I had a dream all night, I can't remember the plot or anything, I only remember Snow White's pair of proud weapons.

Quietly lifted the fur covering his body and looked at Bai Xuemei in his arms. Han Cheng, who was still immersed in his dream, immediately pulled back to reality...

The whole Qingque tribe was a sensation, because not long ago, their clever, wise, kind, and god sons with a series of adjectives suddenly announced in a high-profile manner that he would use wood to drill holes in stones Come.

After confirming from the Son of God that the wood and the stone are two people from their Qingque tribe, that is, the real wood and stone, everyone immediately boiled.

Drilling holes in wood with hard stones can still be said in the past, but now Shenzi turned one by one and drilled holes in stones with wood? This is really unimaginable!

Some people were afraid that their guess would be wrong, so they found a wooden stick and drilled it on the rock. After half a day, except for the redness of the palm of the hand, there was nothing to gain.

Someone replaced the hand press drill with a pure wood drill rod and started to drill the head, but the result was also ineffective.

The stone is safe and sound, but the wooden drill pipe has been worn away for a long time.

After these two experiments, everyone became more curious and confused about it, and felt that the wisdom of the Son of God was unfathomable.

In the anticipation of everyone, Han Dashenzi, who had done enough foreplay, walked confidently with a calm smile, and came to the stone bar chiseled out of wood.

In his hand, he carried a bag made of animal skin.

Everyone's eyes were firmly fixed on the pocket, expecting their Son of God to take out amazing tools from it.

The pocket was opened, and under the unblinking gaze of everyone, Han Cheng took out a tool from it.

The people who were looking forward to it almost fell down after seeing this tool.

One by one, they all looked at each other in blank dismay.

This... Isn't this a hand press drill? I and others have verified that it is impossible to drill the stone.

How did the Son of God take it out?

This this…

Could it be that the son of God is going to drill the hole with a hand press drill?

That's right, Han Chengcheng was going to drill the hole with the tool in his hand.

Han Cheng, who suddenly wanted to pretend to be a little aggressive in the tribe, was very satisfied with everyone's reaction.

He squatted there, adjusted the hand drill, and started working.

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