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Today I'll introduce an electronic product repair tool,scalpel

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There are two types of scalpels that we commonly use for maintenance

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One is a wide handle

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not handle width

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Mainly the front position where the blade is installed

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Some is wide,some is narrow

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Blades are also divided into wide blades and narrow blades

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Either wide or narrow

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Usage is the same

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Next let's see how to install the blade on the handle

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pick up a blade

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Hold the position of the back of the blade with your hand

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Don't pinch the blade

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Just be careful

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Next we take a look at the bottom half of the blade

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There is a bevel

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There is also a beveled edge on the handle

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It must be the wrong way to put it in this direction

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I have to turn the handle back

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So they will have the same angle

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Then the front end of the handle has a slot that looks like this "宸?

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Poke this slot into this gap in the middle of the blade

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After stabbing firmly, hold the back of the knife and push it forward

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Then press down to the opposite direction

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When pressed to the bottom

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The bevel under the blade corresponds to the bevel on the handle

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The blade is now installed

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It won't loosen

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When removing it, it cannot be pulled out directly

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Because it's stuck in this position

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When removing the blade, push the blade with your fingernail until it lifts

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Then push it to the front

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After loosening

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hold the back of the blade

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Pull out the blade

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The narrow one is also the same way to assemble

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It's done

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The function of the scalpel is basically the same as the knife we introduced in the last video

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They both are used to scratch the circuit boards

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Or to deal with the oxidation of some pins

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This is everthing about the scalpel.Thank you for watching.