A sharpener is a tool for

sharpening Sharpening is the process of creating or refining a blade, the edge joining two non-coplanar faces into a converging apex, thereby creating an edge of appropriate shape on a tool or implement designed for cutting. Improving sharpness is don ...

. It may refer to: *

Knife sharpener Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, or a flexible surface with hard particles, such as sandpaper. Additionally, a leather razor strop, or st ...

, a tool for sharpening a knife **

Sharpening steel Sharpening is the process of creating or refining a blade, the Edge (geometry), edge joining two non-coplanar Face (geometry), faces into a converging Apex (geometry), apex, thereby creating an edge of appropriate shape on a tool or implement d ...

, a tool for sharpening a knife, usually a kitchen knife **

Sharpening stone Sharpening stones, or whetstones, are used to sharpening, sharpen the edges of steel tools such as knife, knives through grinding and Honing (metalworking), honing. Such stones come in a wide range of shapes, sizes, and material compositions. ...

, a tool for sharpening a bladed or edged tool, such a knife *

Pencil sharpener A pencil sharpener (or pencil pointer, or in Ireland a parer or topper) is a tool for sharpening a pencil's writing point by shaving away its worn surface. Pencil sharpeners may be operated manually or by an electric motor. It is common for m ...

, a tool for sharpening a pencil *

Sharpening jig A sharpening jig is often used when sharpening woodworking tools. Many of the tools used in woodworking have steel blades which are sharpened to a fine edge. A cutting edge is created on the blade at the point at which two surfaces of the blad ...

, a tool for sharpening a woodworking tool

See also