Three levels (1/16, 1/8, 1/4) to allow channel folding. Two sides are beveled for sharp folds to 135°. Cut-Outs reach into Photo Etch parts for complex folds. Very effective on large box/pan shapes. Excellent for any type or scale of Photo Etch less than 4″long Spring-loaded head rotate either face along the edge. Head & Base are machined from aircraft grade aluminum. Head hard anodized clear, base hard anodized black for excellent contrast. Instructions and small folding blade included. For more PE tools see the PE Tools section of the etoarmour.com site.