The blacksmith's guide : valuable instructions on forging, welding, hardening, tempering, casehardening, annealing, coloring, brazing, and general blacksmithing (1907)
Sallows, J. F. (James Francis), 1865- · Brattleboro, Vt. : The Technical Press · leaf 68
55 TOOL FORGING times, it usually requires lengthening. In doing this, do not attempt to cut out a piece, as in Fig. 33, as you are almost sure to get a cold shut. Just take the bevel set and drive down as shown at A, Fig. 32, cut off the Lengthening a Boring Tool — Threading Tool. corner at B, and… … Fig. 35. Threading Tool. Threading Tools. — An inside threading tool is made about the same as a boring tool, only the point is cut
Blacksmithing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from The carpenter's and joiner's repository, or, A new system of lines and proportions for doors, windows, chimnies, cornices & mouldings, for finishing of rooms, &c. &c. : a great variety of staircases, on a plan entirely new, and easy to be understood : circular circular [sic] soffits, slewing and winding, in strait and circular walls, groins, angle brackets, circular and elliptical skylights, and the method of squaring and preparing their circular bars, shop fronts, &c. (1778)](https://img.insideoutlibrary.com/img/200/ia-gri_33125008736684-148-0.webp)
