One of the countless ways we manage to turn timber into sawdust or shavings is by drilling holes in it. These are so that different timbers can be joined together using offset oak pegs (a process called “drawboring” – see this previous blog on the subject). Most of the holes we drill are either 25mm (1 inch) or 19mm (3/4 inch) depending on the size of peg required for the forces within the joint, for example whether it is in compression or under tension. All when and good so far ………the tricky bit is being able to drill the hole vertically, through a piece of oak that might be a foot deep. If, using a long auger bit, you get the angle wrong to start with, there is no way to correct it, and it might emerge half way towards the next parish. Not good. That is why all timber framers display a “concentrating” “serious” face when drilling…Jowl Post. Sin Comentarios
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