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Technique mastering the Hand Scraper Success with a hand scraper is as easy as one, two, three. For such a simple tool, a hand scraper (also called a cabinet or card scraper) can be incredibly useful. And in that spirit, I've always taken the approach that putting a hand scraper to work should be just as simple as the tool itself. The technique I use takes a few minutes preparation and you're ready to go. Why a Scraper? A scraper is nothing more than a thin, rectangular piece of flexible steel. It works kind of like a cross between a hand plane and sandpaper. A scraper will lift fine shavings (and a little dust) from the wood surface without the worry of tearout. So, it's easier to use than a handplane, but it does die job a lot faster than sandpaper. I often reach for a scraper to remove planer or saw ShopNotes /ft, ONLINE EXTRAS Check out our website at ShopNotes.com to view a video on sharpening and using a scraper. a medium-grit stone, and a burnisher are the only tools needed. File. First, you need to remove the old, dull burr and make sure the edge of the scraper is straight and square. All this takes is several quick passes over the edge with a mill file. Time? Maybe 30 seconds. Hone. Next, I pick up the stone to quickly hone the edge. This step simply removes your filing marks and ensures that the burr formed next will be crisp and sharp. The Burr. Now, you can use the burnisher (just a hardened steel rod) to draw the burr on the edge. First, lubricate the edge with a drop of oil. Then a half dozen back and forth strokes, with increasing pressure, flares the edge. Next, by tilting the burnisher, the flared edges are "rolled" over and the sharp hook is formed . A simple touch of the finger tells me when the scraper is ready. Honestly, from start to finish, I never spend more than a few minutes creating the burr. Finally, the box on the opposite page will help you put your scraper to work. & A Quick Hone. A medium-grit stone will smooth any roughness on the edge left by the file. 90 ShoDNotes No. 87 marks on difficult wood, to smooth panels, or "flush out" plywood edging, as shown above. The Burr. When you run your finger across the edge of a well-sharpened hand scraper, you'll feel an "invisible" hook or burr (drawings on opposite page). This is what makes a scraper work. When drawn across a surface, the burr digs in, and then peels back a fine shaving. So, when you "sharpen" a hand scraper, your goal is to form a crisp burr on the edge. Three Quick Steps. The photos below along with the photo and drawings on the opposite page, show the tools and steps I use to create the burr. As you can see, all the work is done with the scraper clamped in a bench vise. A mill file, Start Fresh. The first step in sharpening a scraper is to take |
