. School shop installation and maintenance . Fig. IG. 42 SCHOOL SHOP MAINTENANCE this and keep the bevel correct. Whetting should continue until aslight feather or wire edge can be felt turned over on the backof the iron, extending clear across the cutting edge. To removethis, lay the tool flat down on the oilstone with the bevel up andgive a few light strokes in a circular motion. If the feather edge is not removed entirely by this,hold the tool upright and draw itcrosswise of a piece of wood,making a cut like that of aknife. One such cut should re-move the ragged edge. In re-placing the cap-
. School shop installation and maintenance . Fig. IG. 42 SCHOOL SHOP MAINTENANCE this and keep the bevel correct. Whetting should continue until aslight feather or wire edge can be felt turned over on the backof the iron, extending clear across the cutting edge. To removethis, lay the tool flat down on the oilstone with the bevel up andgive a few light strokes in a circular motion. If the feather edge is not removed entirely by this,hold the tool upright and draw itcrosswise of a piece of wood,making a cut like that of aknife. One such cut should re-move the ragged edge. In re-placing the cap-iron, it should be clamped about \i{ from theFig. 17 • ^ e -i- 1 cuttmg edge tor ordmary work, and closer for cross-grained hard wood. 42. Chisels are ground and whetted exactly as are plane irons,with the exception of the angle of the bevel which should be from20° to 25° for paring chisels and about 30° for mortising or forheavy work on hard wood. 43. Turning Tools.—The roughing gouge should be so groundthat, on looking down the cutting edge
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmanualt, bookyear1922
