Die cast jig frame with shaft cradle permanent magnet top and bottom adjustment dials nock receiver index setting screws nock receiver holding screws and a standard nock receiver which determines the positioning of the fletching. Top and bottom adjustment knobs can be set to provide a straight fletch or to increase or decrease a diagonal fletch. Left and right clamps provide a left or right helical fletch. Feathers or vanes can be accurately spaced for 3-fletch-120 4-fletch-75 X 105 4- fletch-90 or 6-fletch-60. elect the standard straight right or left nock receiver when choosing your jig. Base and clamp sold separately.