Center-bit?
Drill-bit? Used for what? Caution? Why and how make a seat?
Gimlet-bit? Its use?
Brad-awl? Used for what and how?
The advantages of patent spiral screwdrivers and automatic drills?
Preparation for Demonstration; Assignment for Lesson 18—
Essentials, Sections 27, 30, 34. Memorize 34.
Demonstration—
The essential points in squaring up rough stock.
Surface leveling, winding-sticks, their use, gaging to thickness, etc.