Many wood wood scrapers tool work, such as lacquers and varnishes, can be scraped smooth between coats faster, flatter and with more control than with sandpaper. This means you must polish the faces of the scraper quite smooth along each of the four working edges, and then work the edges themselves as well. Start by scraping across both ends of a piece; it's hard to start at the end without cutting too deep. Pushing the scraper, with your thumbs bowing the center forward, narrows the cutting area and allows you to work very precisely, removing material from a narrow line or a specific spot without disturbing the surroundings. My Account. Wood scrapers tool work eight to ten pounds' pressure; enough to feel firm without hurting your thumb.

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This means you must polish the faces of the scraper quite smooth along each of the four working edges, and then work the edges themselves as well. Once it's sharp, you'll take two more short steps to make the scraper into the finest finishing tool you own.

We'll illustrate the process with a standard rectangular scraper; bear in mind that the techniques discussed apply to curved scrapers as well.

The goal of sharpening is simple: you want each of the four working edges to be quite straight, as close to square as possible, and crisply sharp. A clean, sharp mill bastard file 6" to 10" long is an ideal sharpening tool. It's easy to file the scraper's edges straight and square. Skew the file so a good bit of its length lies along the scraper's edge; this will almost inevitably cut the edge straight—and edges do need to be straight for finishing flat surfaces.

Slide the file along the edge like a plane, applying firm pressure until you're getting a positive, consistent bite all the way along. Now give several more strokes with less and less pressure until you've created clean, sharp edges with no detectable burrs hanging off the sides.

If you feel any burrs, file a little more with very little pressure to avoid crushing and tearing the sharp, delicate edges. If the edges don't feel very sharp, they aren't; keep at it. Once you've sharpened one edge, turn the scraper over in your vise and file the other edge likewise. Conventional instruction now calls for honing on sharpening stones, but if you do a good job with the file you can skip honing and never miss it. The final two steps are done with a burnisher , which is a short rod of very hard steel polished to a very smooth surface.

To "burnish" is "to polish; make shiny or lustrous by rubbing". The burnisher will finish the job of sharpening the scraper's edges and then gently shape them into high-angle cutters. Lay the scraper on a firm, flat surface such as your bench, and wipe a liberal smear of heavy oil along the edge. Use 20 or 30 weight motor oil or the like, not thin cutting oil; you want to lubricate the scraper to be sure the burnisher slides smoothy with no chance of biting into it and tearing the cutting edges.

Bring the burnisher Traditional Woodworking Hand Tools Pdf Not Work on flat, with your thumb bearing down hard directly above the scraper's edge, and stroke its full length fifteen or twenty times. This will make the surface smoother hence sharper , and both harder and tougher as well, so the tiny burr you're soon to create will be able to stand up to the kind of hard work you're going to ask of it.

Apply eight to ten pounds' pressure; enough to feel firm without hurting your thumb. Flip the scraper over and burnish the opposite side, then turn it around lengthwise and do the other two edges as well. We might be smarter to call this "forming the edge" to avoid confusion about what "burr" means. In this case, it does not mean the sort of torn, ragged cornice we're usually talking about when we use the word. On a scraper the "burr" is actually the clean, smooth and continuous cutting edge created by filing and burnishing.

You're going to use the burnisher very gently to push that cutting edge up to form a tiny, sharp hook that runs the full length of the scraper. The edge you're about to work on is sharp, which means there's very little steel right out at the cutting edge—which means it takes very little pressure to push it up into a tiny burr.

Applying no more than about 8 ounces of pressure, stroke the edge full length five to ten times. Now wipe off the oil and feel the results. The burr should hardly be big enough to detect; it should feel mostly just like a very sharp edge. A distinct, heavy burr won't work well at all, so if you've produced such a thing, use the burnisher to lay it out flat and try again. Turn a burr on all four edges, so you'll be able to do plenty of work before you need to start over.

As you use the scraper, its tiny edge won't last terribly long, and eventually it will begin making more dust than shavings.

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