A handy taper gage is shown in Fig. 46. The blades of the gage are made of tool steel. The edge of the blade _A_ is V-shaped, and the blade _B_ has a V-groove to correspond. The end of _B_ is offset so as to make the joint and allow the two blades to be in the same plane. A strong screw and nut are provided to hold the blades at any setting. The user of this gage looks under the edge of _A_, and is thereby enabled to tell whether the taper coincides with that set by the gage, and also where a taper piece needs touching up to make it true.[24]

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