Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 295
29O MILL AND FACTORY APPLIANCES AND TOOLS, ETC. … 753. EXPANDING DRILL. For en-larging the bottom of drill holes for flushtapping or for Lewis jaws or anchors. Thepivoted cutter allows of the cutting of a largercavity than with the eccentric pointed plaindrill. 754. Position of tool when under-cutting. 755. Front view of cutter. 756. TAPER…
Mechanical movements
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