of flashing in a position about the bend line 86 a scale 94 is attached substantially parallel to the length of the groove 84 a bend crease is measured using the scale 94 to achieve a desired distance from the crease to the edge of the flashing now turning to fig6 and 7 another embodiment of a device for forming flashing having an adjustable angle is illustrated in perspective front views the device 100 comprises a plate 102 having adjustable angle grooves a main groove 104 is connected to a first groove 108 about a first bend line 106 to create an angle a additionally the first groove 108 is connected to a second groove 112 about a second bend line 110 to create an angle b furthermore the second groove 112 is connected to a third groove 116 about a third bend line 114 to create an angle c the grooves 104 108 112 and 116 are positioned in a fan shaped arrangement having angles a b and c an adjustment guide 118 is attached to the plate 102 with a pinned connection 120 the adjustment guide 118 assists the flashing when using the first and second grooves 108 and 112 respectively a.