This tool requires no description. The ratchet brace is useful for boring in awkward places where it is difficult to use a common bit-stock. There is also a contrivance for extending the bit-brace to bore in places which cannot be reached by the common brace alone, but this you will seldom require. An angular bit-stock, with a " universal angle " adjustment, is useful. By this the bit can be pointed in different directions, while the bit-stock is turned continuously in the ordinary way, thus enabling a hole to be conveniently bored in an out-of-the-way corner. See Boring.