Machine for Drilling Small 211×320 Medium 423×640 Large 676×1024 Download Tiff Original 1585×2400 | (324.2 KB) Description A shaftlike tool with two or more cutting edges for making holes in firm materials, esp. by rotation. Keywords boring, creating by removal, Drilling, remotion Galleries Miscellaneous Industrial Machinery Source: Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)
