Rope splicing in ropework is the forming of a semi-permanent joint between two ropes or two parts of the same rope by partly untwisting and then interweaving their strands. Splices can be used to form a stopper at the end of a line, to form a loop or an eye in a rope, or for joining two ropes together. Splices are preferred to knotted rope, since while a knot typically reduces the strength by 20–40%, a splice is capable of attaining a rope's full strength. However, splicing usually results in a thickening of the line and, if subsequently removed, leaves a distortion of the rope. Most types of splices are used on 3-strand rope, but some can be done on 12-strand or greater single-braided rope, as well as most double braids. While a spliced 3-strand ropes' strands are interwoven to create the splice, a braided rope's splice is constructed by simply pulling the rope into its jacket.
Fid splicing tools: A fid is a hand tool made from wood, plastic, or bone and is used in the process of working with rope. A variety of fid diameters are available depending on the size of rope being used. Styles of fid designs include: Swedish Fid is conical instrument with a somewhat long taper.
Tubular Fid aid in splicing double-braided rope.
Uni-Fid needed to splice braid with a parallel core. A Pulling Fid is often used for smaller diameters of braided ropes. Also a Softfid is a great tool when dealing with tightly braided ropes.
Other splicing tools: There are several different splicing tools available, old as new and modern tolls. Some of commonly used ones are: A Marlinspike is a tool, usually made of steel and often part of a sailor's pocketknife, which is used to separate strands of rope from one another. They can range in size anywhere from 3 inches to 5 feet long, with a round or flattened point. Serving Tools. Serving is still used to protect wire rope, or the thing round which the wire is looped. Hudson Phids is for 3-Strand Rope and Mega Braid. Phid makes a smaller opening in the rope than ordinary phids for a smoother, fairer splice. Splicing Wands is for braided and parallel-core rope. The Splicing Wand is a long tube with a hidden snare that makes tucking quick and easy. Sailmaker's Palm or Sewing Palm. The Sailmaker's Palm is designed for those working with touch materials like canvas or heavy nylon. The sewing needle is set in one of the divots in the metal plate, and the sailmaker then uses the palm to push the needle through the material.