Burnisher

A burnisher is a hand tool used in woodworking for creating a burr on a card scraper.[3]

For burnishing more generally, see Burnishing (metal) and Burnishing (pottery).
Burnisher
A burnisher made from high speed steel with a rosewood handle[1]
Other namesBurnishing rod
Ticketer[2]
ClassificationWoodworking hand tool
Used withCard scraper, also known as a cabinet scraper
Process of sharpening:
  1. Rough edge
  2. Edge squared by filing or grinding
  3. Optional first pass with the burnisher
  4. Rubbing the burnisher at a slight angle against the scraper to turn the burr

Description

The shaft of a purpose-manufactured burnisher is polished smooth, usually with a round profile, and is typically made from high speed steel (HSS) or cemented carbide.[4] Such burnishers usually have a wooden handle, while other profiles of the shaft include ovals and triangles.[4]

Makeshift substitutes to a shop-bought burnisher include using other common workshop items made from hardened steels or cemented carbide, such as the back of a gouge, a bevel edged chisel, a nail punch, or an HSS drill bit.[5] Alternatively the woodworker might use a carbide or HSS rod marketed for other uses.[6][7][4]

Limitations

For a burnisher to work effectively it is necessary for the burnisher to be much harder than the scraper. Modern scrapers are typically manufactured from harder steels than historically, so require burnishing with harder materials, resulting in some traditional makeshift burnishers being less effective on modern scrapers.[4]

Use
See also: Card scraper § Turning the burr

Once the edges and faces of a card scraper has been filed or ground flat and square, the burnisher is repeatedly rubbed at a slight angle along the edges of the scraper, creating a small burr. However, the specifics of the process can vary significantly between different woodworkers.[3][6]

See also

References
  1. "Burnisher". www.crownhandtools.ltd.uk. Retrieved 2020-10-07.
  2. "Fine Woodworking – Debunking Myths and Mysteries on Cabinet Scrapers". Paul Sellers' Blog. 2013-07-14. Retrieved 2020-10-07.
  3. "Page:Cassells' Carpentry and Joinery.djvu/38 - Wikisource, the free online library". en.wikisource.org. Retrieved 2020-10-07.
  4. Christopher, Schwarz (2011). The Anarchist's Tool Chest. Fort Mitchell, KY, USA: Losy Art Press LLC. pp. 279–281. ISBN 978-0-578-08413-8. OCLC 875304703.
  5. "Scraper Burnishers That Work". Paul Sellers' Blog. 2015-02-08. Retrieved 2020-10-07.
  6. Wearing, Robert (2010). "The cabinet scraper". The Essential Woodworker (Rev. ed.). Fort Mitchell, Ky.: Lost Art Press. pp. 89–94. ISBN 978-0-578-06044-6. OCLC 711676532.
  7. "DIY Burnishing tool on the cheap". LumberJocks.com. Retrieved 2020-10-07.
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