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cabinet scrapers

Scrapers 101

Scrapers are thin, flat pieces of steel. They may be rectangular, or some of the edges may be curved. For scraping hollow surfaces curved scrapers of various shapes are necessary. Convenient shapes are shown in Fig. 150. The cutting power of scrapers depends upon the delicate burr or feather along their edges. When properly sharpened they take off not dust but fine shavings. Scrapers are particularly useful in smoothing cross-grained pieces of wood, and in cleaning off glue, old varnish, etc.



Fig. 150. Molding-Scrapers.

There are various devices for holding scrapers in frames or handles, such as the scraper-plane, the veneer-scraper, and box-scrapers. The veneer-scraper, Fig. 151, has the advantage that the blade may be sprung to a slight curve by a thumb-screw in the middle of the back, just as an ordinary scraper is when held in the hands.



Fig. 151. Using a Veneer-Scraper.

In use, Fig. 152, the scraper may be either pushed or pulled. When pushed, the scraper is held firmly in both hands, the fingers on the forward and the thumbs on the back side. It is tilted forward, away from the operator, far enough so that it will not chatter and is bowed back slightly, by pressure of the thumbs, so that there is no risk of the corners digging in. When pulled the position is reversed.



Fig. 152. Using a Cabinet-Scraper.

Cabinet Scraper Set
This Cabinet Scraper Set contains a 2-3/4'' x 4-3/4'' gooseneck, 2'' x 5-3/4'' round end and 2-3/8'' x 5-7/8'' straight scraper for concave, convex and flat areas. Cabinet scrapers are great for removing milling marks and final smoothing. Optional 10" Smooth Mill File (sold separately) is ideal for truing cabinet scrapers prior to burnishing.

Cabinet Scraper Set

Cabinet Scraper Set
 

One method of sharpening the scraper is as follows: the scraper is first brought to the desired shape, straight or curved. This may be done either by grinding on the grindstone or by filing with a smooth, flat file, the scraper, while held in a vise. The edge is then carefully draw-filed, i. e., the file, a smooth one, is held (one hand at each end) directly at right angles to the edge of the scraper, Fig. 153, and moved sidewise from end to end of the scraper, until the edge is quite square with the sides. Then the scraper is laid flat on the oilstone and rubbed, first on one side and then on the other till the sides are bright and smooth along the edge, Fig. 154. Then it is set on edge on the stone and rubbed till there are two sharp square corners all along the edge, Fig. 155. Then it is put in the vise again and by means of a burnisher, or scraper steel, both of these corners are carefully turned or bent over so as to form a fine burr. This is done by tipping the scraper steel at a slight angle with the edge and rubbing it firmly along the sharp corner, Fig. 156.



Fig. 153. Sharpening a Cabinet-Scraper: 1st Step, Drawfiling.

Fig. 154. Sharpening a Cabinet-Scraper: 2nd Step, Whetting.

Fig. 155. Sharpening a Cabinet-Scraper: 3rd Step, Removing the Wire-Edge.

Fig. 156. Sharpening a Cabinet-Scraper: 4th Step, Turning the Edge.

Crown Burnisher
Hardened steel burnishers are the preferred tool for putting a razor-sharp burr edge on cabinet and card scrapers. This Crown round burnisher features a polished M2 HSS (high speed steel) rod fitted with a beautiful rosewood handle for comfortable, effective burnishing.

Crown Burnisher

Crown Burnisher
 

To resharpen the scraper it is not necessary to file it afresh every time, but only to flatten out the edges and turn them again with slightly more bevel. Instead of using the oilstone an easier, tho less perfect, way to flatten out the burr on the edges is to lay the scraper flat on the bench near the edge. The scraper steel is then passed rapidly to and fro on the flat side of the scraper, Fig. 157. After that the edge should be turned as before.



Fig. 157. Resharpening a Cabinet-Scraper: Flattening the Edge.

Bahco Cabinet Scrapers
These classic scrapers cut paper-thin shavings to remove milling marks and deliver a flush final smoothing. Their Swedish-steel edges stay sharp longer than most scrapers. Two sizes available. Sold individually. Optional 10" Smooth Mill File (sold separately) is ideal for truing cabinet scrapers prior to burnishing.

Bahco Cabinet Scrapers

Bahco Cabinet Scrapers

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