Why do the metal stensils have wood handles?​

Handles of cooking utensils are made of wood because wood is insulator of heat and so does not get heated while cooking. If they will be made of iron then it will get heated and we will not be able to hold them. Plastic is used to make handles of cooking utensils because it is also insulator of heat.

Stencilling produces an image or pattern by applying pigment to a surface under an intermediate object with designed gaps in it which create the pattern or image by only allowing the pigment to reach some parts of the surface. The stencil is both the resulting image or pattern and the intermediate object; the context in which stencil is used makes clear which meaning is intended. In practice, the (object) stencil is usually a thin sheet of material, such as paper, plastic, wood or metal, with letters or a design cut from it, used to produce the letters or design on an underlying surface by applying pigment through the cut-out holes in the material.

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