A category of precision screwdrivers, they are drives made to function with very small screws, such as Those people you discover in eyeglasses or pocket watches. Usually, jeweler’s sets are a combination of slotted and Phillips dimensions. It is often selected with a “PH” and is available in several sizes. https://typesofrooftile42615.mybloglicious.com/50465098/a-simple-key-for-types-of-screw-heads-for-screwdrivers-unveiled