No line cutter on this.

http://www.crkt.com/Renner-Neckolas-Neck-Knife-Blunt-Tip-Blade-Orange-Handle-and-Sheath

Another option is this, then have someone carbidize the edge so it'll stay sharp longer.

http://www.mec.ca/AST/ShopMEC/Paddling/KnivesSnorkelGear/PRD~5004-128/wenoka-squeeze-titanium-knife.jsp