Рет қаралды 110,211
How to drill straight, accurately is the trick of drilling in various media such as wood, iron and concrete so that the results obtained are straight according to the elbow. How to drill with straight results is very easy and simple using an elbow ruler. The manual electric drill and small bit used are perfect for beginner practice. An iron drill bit that can also be used on wood is very efficient for everyday household purposes. It will take not long for the adaptation of this technique, hopefully it will be useful for all of us.