Deep Hole Drilling 1910, 1926 & 1927

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A combination of one of the Machinery’s Reference Series Booklets and two articles from Machinery Magazine, this book covers the techniques used for drilling very deep holes in metal - pistol and rifle barrels for instance. Technically interesting stuff, although the application of these techniques in model engineering is rare, at least to the depths covered here. 48 page well illustrated booklet. Softcover.