10 Tools You Didn't Know You Needed Some tools, like your trusty cordless drill or hammer, you're going to use all the time. These specialty tools you won't need that often—but when the time comes, you'll sure be glad you've got 'em.
Spandrel- The area between an arches crown and its springing line is the spandrel. It’s a roughly triangular area above and on either side of an arch. A spandrel can often be found between the sill of a window and the head of the window below it.