I am a Primitive Man

Mu Mu is a very patient and temperamental person, otherwise he would not smash the stone all day long, and he would never tire of it.

Although the task given by the son of God was arduous, he did not shrink back. After sitting there for a while, he found the stone and began to tap the circle that Han Cheng had circled on the stone.

Anyway, you still have to do it with your hands, sitting there dreaming, it is impossible to think of a glance on the stone strip.

"Papa......"

There was a knocking sound, and after the stone was hit, there was a pungent smell, and there were stone chips flying out, and gradually, shallow pits appeared on the stone.

The work of Mu Mu was stopped by Han Cheng.

It's not that the wood is not made seriously enough, but the pit cut out by this percussion method is the kind of cone-shaped big outside and small inside.

In this way, even if the stone hole is finally removed, it is not suitable for installing the shank.

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

According to the current method of wood, a hole of two and a half centimeters in diameter is made in the stone strip, and the top part is almost cut to the edge of the stone strip...

This kind of shackle is used to plow the ground, and its fate is similar to that of a bone hoe. Basically, it will break from the place where the wooden handle is installed in a few clicks...

The best way is to use a drill to drill holes on it, so that the drilled hole is generally thick inside and outside.

To drill a hole in a stone, you need a metal drill...

This alone was enough to make Han Cheng helpless.

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

How good is it to build one directly from steel.

Is it true that after plowing and turning the ground, you can only dig it with a shovel?

Han Cheng frowned.

Then he smiled helplessly, and after he came over, he tried to drill the hole.

Last time it was wood, this time it was stone. This is really fate.

The wood is also frowning.

This person who has always been very patient now feels very disappointed.

Because as the first stonemason of the Qingque tribe, he couldn't meet the requirements of the **** son, and he couldn't get a suitable eye on the stone...

As the second brother's condition improved day by day, his mood relaxed, and the witch who was in the mood to play rabbits, discovered Han Cheng's distressed state, so he carried a rabbit that was trained honestly by him, and walked all the way over and asked.

Han Cheng explained his difficulties, and Wu felt very sorry after hearing it.

The bone shovel that can dig and turn the ground is already very useful to him, and the shovel that the **** son said is more suitable for turning the ground than the shovel, especially the harder ground.

Knowing that there is such a tool that would be of great benefit to the tribe, but not being able to make it, is a pity for people like witches who plan for the tribe without problems.

He couldn't help a little bit just about drilling his eyes on the stone. The cleverest **** in the tribe and the wood who dealt with the stone the most were at a loss for this matter, let alone he said.

Do I have to use a metal drill to drill a hole in a stone?

How did the holes in the stone tools from a long time 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 of his mind.

No one said that metal drills should be used to make holes in stones!

What kind of tools and methods should be used if metal drills are not used?

"Yes!"

Han Cheng, who couldn't sleep holding Bai Xuemei at night, suddenly cried out excitedly.

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

The sleeping sister Bai Xue was awakened by Han Cheng's voice, and asked Han Cheng dazedly what she had.

Han Cheng smiled and hugged her in his arms, said it was okay, and let her go 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 do what he thought of.

He couldn't sleep at night, and he held a child bride in his arms. Of course, Han Cheng's hands would not be idle.

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

After the name was changed to Bai Xuemei, the place where the child's daughter-in-law should grow meat finally began to grow.

Although it is small and young, at least it is not a Pingchuan.

With Yang Wanli's famous poem, "The little lotus shows its sharp horns, and the dragonfly stood on its head" poem, Han Cheng fell asleep.

I had a night of dreams in the evening, and I couldn't remember the plot or anything, but only remembered Snow White's proud weapon.

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

The entire Qingque tribe was a sensation, because just now, their smart, wise, kind, and a series of adjectives, suddenly announced in a high profile that he would use wood to drill holes in the stone. Come.

After confirming from the son of God that the wood and the stone were two members of their Qingque tribe, the wood and the stone that really existed, everyone immediately boiled.

Using hard stones to drill holes in the wood can still be said in the past, but now the gods have turned over one by one, using wood to drill the stones? This is really unimaginable!

Some people were afraid that their guess was wrong, so they deliberately found a wooden stick to drill on the stone. After half a day, except for the redness of the palm, they didn't get the slightest gain.

Someone replaced the hand-pressed drill with a pure wood drill rod and started the diamond head, but the result was also no result.

The stone was safe and sound, but the wood drill pipe was worn away for a long time.

After these two experiments, everyone became more curious and puzzled about this, and they felt unfathomable about the wisdom of the Son of God.

In the expectation of everyone, the **** son Han Da who had done enough foreplay, with a calm smile, stepped confidently, came to the stone slats hewn out of wood.

In his hand, he carried a pocket made of animal skins.

Everyone's eyes are fixed on this pocket, expecting their **** son to come out with amazing tools.

The pocket was opened, and under everyone's unblinking gaze ~www.wuxiahere.com~ Han Cheng took out a tool from it.

After seeing this tool, everyone who was looking forward to it almost fell.

One by one became staring at each other.

This... isn't this a hand drill? It has been verified by myself and others that it is impossible to drill the stone.

How did the son of God take it out?

This this…

Is the **** child ready to drill with a hand drill?

That's right, Han Chenggong is going to drill holes with this tool in his hand.

Suddenly wanting to put on a faintly forced Han Cheng in the tribe, he was very satisfied with everyone's reaction.

He squatted there, adjusted the hand drill, and started to work.

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