The marking gage, Fig. 22, is used for laying out accurate lines along the grain of the wood.
The spur, or marking point, is to be sharpened like a knife point by means of a file, the cutting edge to act when the gage is pushed forward with the right hand. A left handed person will have to draw the gage toward him or else reverse the cutting edge of the spur.
As the graduations on a gage stick or beam are not reliable, it is safer to set a gage by means of a rule held as in Fig. 23. As in all other work, make certain of the accuracy of the setting by again measuring with the rule after the thumb-screw has been adjusted for the first setting. Measure from the gage head to the sharpened point of the spur.
Fig. 22. Marking Gage.
Fig. 23. Setting-Marking Gage.