에어컨 타공작업 연습 영상

I filmed a video while teaching drilling. I'm grateful to the trainees who said they didn't own their portraits and allowed me to use it freely. I believe this will be of great help to those who are unsure about drilling or have been wondering how to do it properly. I'd like to point out that the people in the video are complete beginners. It's great to show off my skills, but I also think it's a valuable experience to see how these beginners do it, so I'm uploading this video. I recommend that you consider doing the drilling yourself and carefully observe the drilling posture and how to position the core drill bit. I'm not making this video because I'm good at it. I made it for those who find the process difficult and are curious, so please understand if I make mistakes. The reason drilling is difficult when installing a home air conditioner is because of various environmental issues, such as not being able to lean against the wall for fear of staining the white wallpaper, and maintaining proper posture in tight spaces. I've been drilling for over nine years, but I still feel a pang of anxiety when drilling. No matter how well I check, I'm always afraid of what might be inside the wall. If you suddenly lose the power to hold the core, immediately remove the blade and check what is inside before working on it.