GRADE VII.
(Woodworking Group III.)
Lesson 20.
Recitation—
Countersink-bit? Its use?
Boring to depth? Fully. Where many holes of the same depth are to be bored?
Sandpapering? When and when not?
Purpose of sandpaper block? How place the paper on it?
When are arrises sanded and why?
Curved surface sanding?
Numbers on the back of a sheet of sandpaper?