Check the listing for details. Bitzenburger Fletching Jig Base Left Helical - Base ONLY. Condition: New with tags. Listed at 76.44 USD. Bitzenburger Fletching Jig Base Left Helical - Base ONLY Normal 0 false false false EN-US X-NONE X-NONE 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. Clamp sold separately. WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.