| 摘要 |
A preferably transparent awareness guard of flat plate form is attached to the conventional upper saw guard of a radial arm saw or the like in such a manner that the awareness guard can be raised and lowered relative to the work and saw blade and can also be tilted through a rather wide angular range and securely locked in various adjusted positions. The guard extends forwardly of the saw blade and on opposite sides thereof so that, when the sawyer moves material in front of the saw blade to reposition his work, his arm will engage the awareness guard before contacting the saw blade.
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