Next, it was up to him to perform alone, the electric grinding wheel was moved out, and the stinging sparks with lightning rubbed sharpened the tip of the steel drill more sharply, and two inch-long blood grooves were opened vertically.

Then light a gasoline blowtorch to heat the part that has just been polished, use an infrared thermometer to monitor the temperature to more than 800 degrees, quickly put it into the water to quench, and then use a blowtorch to heat it to about 200 degrees after the temperature drops, and put it aside to cool down naturally.

Hong Tao's major is metal heat treatment, and he is very familiar with this kind of steel brazing made of 45 medium carbon structural steel. Water quenching is done to maintain hardness, but if the temperature is cooled too quickly, there will be a lot of stress inside the part due to uneven heat and cold.

Reheating to about 200 degrees and using low-temperature tempering to eliminate this part of the stress can prevent the metal from being hard and brittle in a certain part and soft and tough in a certain part, which is easy to crack and deform.

Of course, the tools and materials he uses are not up to the process, which is not a coincidence, and even with an electric stove and quenching oil, he does not have that much electricity available. The steel drill treated in this way is a very good gun head, not to mention the skull, which can be used to chisel reinforced concrete.

But how can such a bare steel drill be fitted to a wooden pole? It can't really be tied with a rope like Zhang Ke said. Indeed, even if you tie Hong Tao with wire, you don't do it, it's too foolish, you have to fall apart in a few clicks, it's no problem to use it for others, but you must be responsible for your own use.

The way he used it was actually the same as the way the shovel head was loaded with a shovel handle, making an iron ring cylinder on the wooden handle, paying attention to wearing a thin bolt, and simply nailing a nail to finish the job. Anyway, as long as the wooden handle continues, don't plan to take off the gun head.

But how do you put an iron sleeve behind the steel drill? Not only Zhang Ke couldn't figure out this thing, but even early autumn couldn't figure it out. Could it be that the tail of the forged steel chisel has to be burned red, and the landlord has changed to a blacksmith again!

"Sting...... Thorn Lala...... Zizizi...... "Hong Tao is not a blacksmith and does not know how to forge, but he can weld.

Make four pieces of iron and weld a sleeve at the steel brazing tail, and you can install the wooden handle. What? It's not round! I'll put your lungs on top, it has something to do with the square and round, and it can be fixed with the wooden handle.

But the power is interrupted, can the welding machine still be used? The answer is still this pile of batteries. If there is a high-power inverter, the welding machine is certainly not a problem, and there is not much work to do, and it will be finished in a few clicks.

But Hongtao's high-power inverter happened to be broken, and the power of the 3000-watt inverter could only be stabilized at about 1500 watts, and the current was too small to bring the welding machine, what should I do?

The answer is still the battery! There is a trick, when welding small workpieces, in fact, there is no electric welding machine, only welding tongs and ground wire can be done.

Specifically, four 80A car batteries are connected in series, the welding wire and the ground wire are connected to the positive and negative poles, and the welding rod can be opened. Although it is not as good as an electric welding machine, it is no problem to take a few more clicks.

Kindly remind, if you want to try it after reading it, it's best not to try the new battery, find the old one. This method can only be contingency, not the norm. It is equivalent to a short circuit of the positive and negative poles of the battery, and the instantaneous high current will cause great damage to the battery. The time should not be too long, the battery will burst.

However, if you drive to the wilderness and suddenly a part is broken and there is no replacement, you can use the batteries of several cars to try it in series, which can also be regarded as a means of self-rescue.

"Come on, how about you try!" It took two hours, and the three bare spears were ready. Don't look bad, but it's powerful enough. As long as he aims and smashes down, Zhang Ke doesn't dare to say that the strength of early autumn plus the weight of the steel drill itself is enough to chisel through the coconut shell.

"Hi...... ......"Holding the ash rod in his hand, Zhang Ke laboriously lifted it and looked at the pickle jar in the corner of the wall, and the result was naturally that the spear fell into the jar and shattered.

"Dead child, what is not good to try, I will use it to pickle pickles and pickled duck eggs tomorrow, don't eat it when the time comes!" Hong Tao didn't pay attention, and the treasured pickle jar was broken, which was more distressing than stepping on the mobile phone.

"Grandpa, you're not a spear, you should be called Ge, right?" Zhang Ke pursed his lips, a little contemptuous of the weapon in his hand. The power is enough, but the appearance is too ugly, and the tip of the spear is not forward, but downward.

"Nonsense, it's all about stabbing, how hard do you have to stab your skull! Have you ever studied physics? Zombies don't put their heads against the wall for you to poke, it's moving! In early autumn, is the leather armor sewn up......"

Hong Tao is indeed not a spear, relying on arm strength alone to really pierce the skull with a cushion, if you want to kill with one blow or smash down, it is more reliable. As long as the body of the gun is longer than the zombie's arm, it must be aimed at one by one. If you want to say that I can't even aim at my head, then I will give you a rifle for nothing, pure waste.

"Okay, okay, put it on and try it!" Taking advantage of Hong Tao's efforts to make weapons, he went to the courtyard of No. 52 in early autumn to find two pairs of boots with thicker leather, and sewed a set of arm guards and leg guards for Zhang Ke with an awl and tire thread. Wearing thick clothes, a helmet and goggles, it is estimated that you can withstand two bites from zombies.

After two bites, if no one comes to the rescue, take the initiative to reach out and let the zombie bite again, it is much more comfortable than biting the face, but it is not disfigured, and you have to die with dignity.

"Remember, don't fight, if you miss, you should quickly retreat, pay attention to your feet when running, and don't let the tripping horse trip you too. I really didn't want to run to the car, circle around the car, and take the time to open the door. Those guys won't close the car door and smash it while they're stopped! ”

At nine o'clock in the morning, a large one, a small one and a woman, wearing protective gear and leather armor, wearing helmets and safety hats and masks, carrying spears more than two meters long, or called Ge, stepped out of the courtyard gate with high spirits.

When passing by No. 52 Courtyard, I went first to search around, and after confirming that no zombies had slipped in, I closed the courtyard door with a strapping belt, so as not to let any more zombies run in, and then turned into the alley next to it and went to Courtyard 56 to kill.

Along the way, Hong Tao still didn't forget the trick, but this time he used the pole and wall as the anchor point, and arranged three wire tripwires from the mouth of the alley. Finally, after telling the precautions, I cut a few straps tied to the gate of No. 56.

"Bang dang...... Bang Dang...... Bang Dang...... Click...... "In fact, just as the three of them turned into the mouth ......of the alley, the zombies in the courtyard of No. 56 heard the movement, or smelled the breath of the living. The sun stopped shining, and I immediately went crazy and banged the courtyard door.

It's a pity that the courtyard door is pushed inward, and they don't pull the door, so they can only ram it. When the strapping was cut, the gate was missing a fixed point, and the range of movement became larger and larger, and soon one collapsed, and a lot of masonry and dirt were brought down from the gatehouse.

"Walk you! Hi...... Ah...... "The first zombie died, it was pushed out by the companions behind, and the feet were mixed in the threshold, and it couldn't be done if you didn't want to eat, and it was pushed later." As a result, as soon as he fell on the door panel, his head was chiseled by three steel drills, two large holes and a small hole. So, if you're not afraid of the enemy, you're afraid of your teammates!

The first blow of the new weapon was both a success and a failure, and the success was that Zhang Ke was able to use it to chisel through the skull of a zombie, no matter whether it was a big hole or a small hole, it was a good job to destroy the brain. The failure is that all three of them aim at one, or the easiest one to hit, and they all have a lot of experience in the lazy project.

"Don't worry, aim and smash!" Hong Tao didn't have the time to command who smashed which head, he used the longest ash rod and the hardest to pick up, but the farthest distance. Then don't pick up the cheap guy on the ground, just aim for the guy in the back.

The enemy is very red when they meet! Sangou, you fucking fall into the hands of Lao Tzu. Throwing garbage bags on the roof of my house! Let you chop cabbage stuffing under the back window of my house in the morning! Let you prick my tires! Today, let's count the old and new hatreds. In the early autumn, Zhang Ke was picking up and down, and Hong Tao used his strength to change his strength and slash horizontally, and from left to right, he was a guy on Sangou's face.

"Uh......h Burst...... "If you want to say that the steel drill is hard, it didn't take much effort to break open the door of the three dogs, pierce it from the position of the nose bridge, penetrate the Tianling cover diagonally, and beat up the small half of the skull."......

It was a coincidence that the other half of the courtyard door collapsed while the three dogs fell on their backs. Losing the obstruction of the courtyard gate, the zombies suddenly rushed out, stepping on the corpses of their companions, not caring about anything on their heads, and rushing towards the living with great strides.