Screwdriver size

1、 Size standards for screwdrivers
The size of a screwdriver is usually expressed in terms of length, width, and thickness. Common standard sizes include:
1. Screwdriver length: Generally speaking, the length of the screwdriver should be slightly longer than the length of the screw that needs to be tightened. The common length standards are as follows:
Phillips Screwdriver length: # 0:3 inches long, # 1:3.5 inches long, # 2:4 inches long, # 3:6 inches long;
Flathead Screwdriver length: 1 inch, 1.5 inches, 2 inches, 2.5 inches, 3 inches, 4 inches, 5 inches, 6 inches, etc.
2. Screwdriver width: The width of the screwdriver should be consistent with the diameter of the screw head in order to turn the screw. Common standard sizes are as follows:
Flat head screwdriver width: # 0:0.8 mm, # 1:1.0 mm, # 2:1.2 mm, # 3:1.5 mm;
Cross screwdriver width: # 0:1.8mm, # 1:2.2mm, # 2:2.5mm, # 3:3.0mm, etc.
3. Screwdriver thickness: Generally speaking, the thickness of the screwdriver should be the same or slightly smaller than the thickness of the screw head in order to accurately turn the screw.
Flat head screwdriver thickness: # 0:0.7 mm, # 1:0.8 mm, # 2:1.0 mm, # 3:1.2 mm;
Cross screwdriver: # 0:0.8 mm, # 1:1.0 mm, # 2:1.2 mm, # 3:1.5 mm.
2、 Common types of screwdrivers
1. Flat head screwdriver: Flat head screwdriver is one of the most commonly used screwdrivers, commonly used for dismantling electronic products, furniture, etc. Flat head screwdrivers have different standard sizes, and you can choose the size suitable for your own use.
2. Cross screwdriver: Cross screwdriver is also one of the commonly used screwdrivers, usually used for assembling and disassembling mechanical products, furniture, etc. Cross screwdriver also has different standard sizes, so you need to choose the appropriate size according to your needs.
3. Hexagonal screwdriver: Hexagonal screwdriver is used to turn hexagonal screws and is commonly used for repairing cars, motorcycles, bicycles, etc. Hexagonal screwdrivers have different standard sizes.
4. Other types: In addition to the aforementioned screwdrivers, there are also many other types of screwdrivers, such as T-type screwdrivers, Y-type screwdrivers, etc., which need to be selected and used according to specific circumstances.
In short, when using a screwdriver, it is necessary to choose a suitable screwdriver based on the size of the screw head in order to effectively tighten or loosen the screw.