This section is from the book "Spons' Mechanics' Own Book: A Manual For Handicraftsmen And Amateurs", by Edward Spon. Also available from Amazon: Spons' Mechanics' Own Book.
This well-known tool is shown in Fig. 274. It is made in various sizes and qualities, the most generally useful being the 5-in. and 8-in. sizes, costing about 3d. per in.
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