RE: Bohning Fletching Jig
I've got the same jig with both the Straight and Right Helical clamps. When I ordered the original jig I ordered it with the Helical clamp. I also wanted a Straight clamp so I went to the Bohning web-site and ordered one from there. The Straight one will offer you some offset if you loosen the knurled screws and just turn the clamp as much or as little as you want. The same goes for the Helical clamp, just make sure you angle it with the lead edge of the vane to the right. Hope this helps.