Fig. 1311.
Fig. 1312.
In [Fig. 1311] is shown a half-round scraper, which is shown in [Fig. 1312] in position to scrape out a bore or hole. This tool is made by grinding the flat face and the two edges of a worn-out half-round smooth file, and is used to ease out bores that fit too tightly. The cutting edges are carefully oilstoned, and the work revolved at a very quick feed.
Fig. 1313.
