Screwdrivers are often used to repair and install furniture and electrical appliances in everyday life. Everyone is familiar with screwdrivers, but not very familiar with screwdrivers. It is easy to confuse screwdrivers and screwdrivers. Let's all understand difference between screwdriver and screwdriver.
A screwdriver is an important tool for tightening or loosening screws, used to tighten screws and put them in place, it is a detachable front part of a screwdriver. Simply put, a screwdriver is actually part of a screwdriver, which is another screw head.
According to head shape, screwdrivers can be divided into straight, Phillips, Rice, Torx, Square, Hex, Y-shaped, etc. Among them, straight and Phillips are commonly used in our life, when installing, used for maintenance. .
Screwdriver materials include carbon steel, chrome vanadium steel, S2 steel, etc.
Chromium molybdenum steel has good impact resistance, good hardness and toughness, but this material is more expensive. Chrome vanadium steel has good strength and toughness, and price is not so expensive, it is a common material for household screwdrivers.
Carbon steel is steel to which no other specific elements are added and which has a mass fraction of carbon less than 2.11%. It has high hardness and high strength, but low impact strength. Not suitable for use as a screwdriver.
S2 tool steel is an excellent impact resistant steel for making high strength hex keys, screwdrivers, etc. Tools made from this steel have sufficient hardness after heat treatment. Good wear resistance, strength and toughness. However, chrome steel is not commonly used when choosing a screwdriver material.
When choosing, you can not only pay attention to model, but also get acquainted with material.