RIGHT.WRONG.
Fig. 479.
A simple bevel (Figs. 477 and 478) is usually best made with the plane, whenever there is room to use it. Plane bevels in end wood from both edges and you can often slant the plane to good advantage like the chisel in Fig. 479. See also Chamfering.
Bit-Brace or Bit-Stock.—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.
Bits.—The auger-bit (the sizes of which are arranged by sixteenths of an inch) so commonly used with the bit-brace, consists, at the cutting end, of a spur, two scoring-nibs, and two cutting-lips. You will see from Fig. 480 that the spur a, acting like a gimlet point or a screw (which it is), starts the bit by drawing it into the wood so that the scoring-nibs b make a circular cut around the circumference. As this cut deepens, the cutting-lips c slice away the wood to be removed in the form of shavings, which are brought to the surface as the boring proceeds.
This bit can be sharpened with a file, the scoring-nibs being sharpened from the inside, lest they be made to score a circle too small for the rest of the bit, while the cutting-lips are filed from the under side.
Fig. 480.
Fig. 481.