Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 177
Fig. 144. … Fig. 145. Boring Bar. Fig. 146. The rose hit (Fig. 143) is specially suited for accuratework, and is only employed in finishing holes whichhave been previously roughly drilled. It is only suitablewhen used in a vertical position, owing to the difficultyof lubricating when used horizontally. Should…
Metal-work
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