Tech Tips

ing, the center hole should be sized to hold your pencil snugly. For centering a drill bit. the center hole must be the same diameter as the drill bit. To use the jig. place it on the stock so the dowels are over the edges and twist it until the dowels touch the edges. You can slide it along to mark a centered line.

J. A. Wilson Lexington, MA

Tape Measure Turned Note Pad

Have you ever noticed how easy it is to erase pencil marks from plastic laminate? A wet thumb will do it. I peeled off the label from my tape measure and glued a round scrap of plastic laminate in its place with contact cement. Now whenever I measure anything. I've got a handy spot to jot down the measurement.

Chris Carey Houston, TX



Dust-Free Sanding

For dust-free drum sanding on your drill press, build a sanding table to clamp to your drill-press table as shown in the drawing. The-in. thick Lexan inserts allow you to use different-diameter drums and maintain a % in. maximum clearance between the drum and the insert.

Jeff Chancey Stevensville. MI

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Wood Working for Amateur Craftsman

Wood Working for Amateur Craftsman

THIS book is one of the series of Handbooks on industrial subjects being published by the Popular Mechanics Company. Like Popular Mechanics Magazine, and like the other books in this series, it is written so you can understand it. The purpose of Popular Mechanics Handbooks is to supply a growing demand for high-class, up-to-date and accurate text-books, suitable for home study as well as for class use, on all mechanical subjects. The textand illustrations, in each instance, have been prepared expressly for this series by well known experts, and revised by the editor of Popular Mechanics.

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