The ring tools shown in use in Fig. 198 are special forms of scraping tools. The hook-like ends

Fig. 293. Right-hand Ring Tool.

Fig. 294. Left-hand Ring Tool.

Fig. 295. Section Showing Cutting Position of Ring Tools.

may be formed by grinding firmer chisels, as shown in Figs. 293 and 294. Fig. 295 shows the position of the tools while in use. A is a section of a part of the arbor, and R is a section of the ring, and T the ends of the tools. As these are light tools, they should be used carefully.