How many models are there in the screwdriver head?
A common cutter head. Generally include such a wide range of categories: one screw, cross screws, six corners, plum, rice, square, triangle, and five star used for Apple products.Each large class has a different size of the knife head to form a series. List some common models:One word: 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2mm, 3mm... Until 6mm, 8mm... WaitCross: PH000, PH00, PH0, PH1, PH2, PH3Inside six corners: 0.7mm, 0.9mm, 1.3mm, 1.5mm, 2mm, 2.5mm... 8mm, 10mm... WaitClubs: T3, T4, T5, T6.... T15, T20... Wait
45 or 52 kinds of screwdriver heads sold on X are many of the same shapes but only of different sizes, even though they have different screwdrivers. In that case, there are more kinds of screwdriver heads.
There are many kinds of screwdriver heads. There are more than 52 kinds. Any company and individual can invent a screwdriver head and apply for a patent. Casually, for example, there used to be no five pointed screws. Since 2009, Apple has invented the five pointed screw and used it on iPhone and Macbook in order to prevent others from disassembling their products. Since then, the screwdriver head is so many, a special model.
