Toolbox: Triangle Detail Sanders

One of the most innovative, though specialized, power sanders to come along in recent years is the triangle sander (also known as a detail sander or corner sander). These sanders feature an oscillating triangular sanding head that vibrates back and forth in tiny sweeping arcs. The oscillating motion will leave sanding marks, but you can prevent this by keeping the sander moving, and not applying too much downward pressure. Only a very light touch is required. The detail sander’s main advantage is that you can sand into corners. I find it especially useful for removing dried glue squeeze-out in the corners of cabinet carcasses and drawers, but there are a host of other applications. In general, it speeds