Proto Snap Ring Pliers

snap ring
A circlip (a combination of 'circle' and 'clip', and pronounced thus), also known as a snap ring or Jesus clip, is a type of fastener consisting of a semi-flexible metal ring with open ends which can be snapped into place, into a machined groove on a dowel pin or other part to permit rotation
carabiner: an oblong metal ring with a spring clip; used in mountaineering to attach a rope to a piton or to connect two ropes
A removable ring used to axially position a bearing or outer ring in a housing. Also used as a means of fastening a shield or seal in a bearing.

pliers
Pincers with parallel, flat, and typically serrated surfaces, used chiefly for gripping small objects or bending wire
(plier) someone who plies a trade
a gripping hand tool with two hinged arms and (usually) serrated jaws
Pliers are a hand tool used to hold objects firmly, for cutting, bending, or physical compression. Generally, pliers consist of a pair of metal first-class levers joined at a fulcrum positioned closer to one end of the levers, creating short jaws on one side of the fulcrum, and longer handles on

proto
Original; primitive
First; anterior; relating to a precursor
Proto is the second album by Irish musician Leo O'Kelly. It was originally planned for November 2002 but was released on February 4, 2003 by Clarinda & 1st, firstly distributed at music venue Whelan's . It contains a collection of previously unreleased tracks recorded from May 1975 to 2001.
This is a list of fictional characters in the anime, manga, and film series Ghost in the Shell created by Masamune Shirow.
proto(a): indicating the first or earliest or original; "`proto' is a combining form in a word like `protolanguage' that refers to the hypothetical ancestor of another language or group of languages"