320 Grit finish.Tapered & flared.Welded in gimbal pin.Supplied with a black PVC liner for rod protection.Pin/Gimbal Thickness 6mm.Wall thickness 3mm.Ideal for rocket launchers and baitboards.Highly Polished.Other Details: Part No. Description Length(mm) Shaft O.D(mm) Shaft I.D(mm) 49928 Alloy Weld on Rod Holder 250 50 44 49928-BULK Alloy Weld on Rod Holder - 40 Pack