Added: 3 years ago
From: EHSUCBerkeley
Views: 9,087
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  • I found it hard to work out the first time I used one properly, that you lift it up to work and then lower it when you aren't directly working. I must have looked strange working with my face pressed up against the sash lol. Great video, this should be one of those things you learn in school but since I never used one till after school it never got covered directly.

  • perfect video... covered all safty regulations .

  • Excellent Video!

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