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Crucible Card Scraper. Card scrapers are usually sold as rectangles or squares, but what has been lost is that the woodworker is supposed to shape the tool to suit their needs, much like the cutting edge of a plane iron.
Card scrapers are usually sold as rectangles or squares, but what has been lost is that the woodworker is supposed to shape the tool to suit their needs, much like the cutting edge of a plane iron. Most of us bow the scraper with our thumbs to get a curved edge, which works but at great expense to the thumbs; many woodworkers with arthritis have had to give up the tool entirely.
In 2018, Welsh chairmaker Chris Williams taught his first class in the United States and brought his card scraper, gently curved along both edges with a tighter curve at the corners. It worked brilliantly on flat and curved surfaces, without bending it with your thumbs. John Brown also wrote in "Welsh Stick Chairs" that the edges of a scraper need grinding to a gentle curve. The Crucible Card Scraper is based on Chris Williams' scraper and is easy to use even for woodworkers with arthritis.
Facts:
1095 spring steel hardened and tempered to Rc 48-51; easy to turn a hook with a standard burnisher (carbide is always the superior choice), and the hook lasts
Polished and blued faces for rust resistance
Waterjet cut for precision and to preserve the hardness, with hand-ground and polished edges
Supplied with a magnet that acts as a heat sink while scraping, so the scraper is comfortable for long periods
Supplied in a heavy paper envelope that protects the edges in storage
Made in the USA from domestic materials
You can of course grind your current scraper to a similar shape. This scraper is for woodworkers who want one that is ready to go after a light honing of the edges and turning the hook, a five-minute job.
Data sheet
Specific References
A card scraper is a thin steel plate that scrapes smooth surfaces, especially on difficult wood. It is sharpened in three steps: the edge is filed straight, honed smooth and then turned into a small burr with a burnisher. The burr is what cuts.
When the scraper stops making shavings, you can often turn the burr again with the burnisher. The guide shows it step by step.