how to know what size phillips head screwdriver i need

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Welcome to the how to know what size phillips head screwdriver i need blog! Here we’ll be discussing the best ways to figure out what size screwdriver you need for your next project. From measuring the screws to finding the right sized drill bit, we’ve got you covered. So grab your tools and let’s get started!


There are many different types of screws and each type has its own unique head. The size of the head is determined by the width of the fluted area at the base of the head, not by the overall width of the head. The most common type of Phillips head screwdriver is sized #2, which will fit most screws used in household applications. However, there are other sizes available that may be better suited for certain projects.

What is a Phillips head screwdriver?

A Phillips head screwdriver is a tool that is used to remove or insert screws with a Phillips head. The Screwdriver is named after its inventor, Henry Phillips. The Phillips head screwdriver has a cross shaped tip that fits into the corresponding screw head. The tip of the Phillips head screwdriver is designed to fit into the recess in the screw head and grip the sides of the screw to provide torque when turning.

How to determine the size of a Phillips head screwdriver?

There are four main ways to determine the size of a Phillips head screwdriver.

The first way is to look at the markings on the shank of the screwdriver. The vast majority of Phillips head screwdrivers will have a size marked on them, usually in either inches or millimeters.

The second way to determine size is to measure the width of the blade tip. The most common widths for Phillips head screwdrivers are #0, #1, and #2.

Another way to determine size is by measuring the length of the shank. The most common lengths for Phillips head screwdrivers are 2 inches (51 mm), 4 inches (102 mm), and 6 inches (152 mm).

Finally, you can also determine size by looking at the shape of the handle. The most common handle shapes for Phillips head screwdrivers are round, oval, and triangular.

Factors to consider when choosing a Phillips head screwdriver

When choosing a Phillips head screwdriver, there are a few factors to consider. The size of the driver will be determined by the size of the screws you plan to use it with. The length of the driver will also be a factor, as longer drivers can provide more leverage. The handle of the driver is also important to consider, as it should be comfortable to hold and provide a good grip.

How to use a Phillips head screwdriver

The Phillips head screwdriver was invented in the 1930s and has become the standard for screws in almost every country. It is recognizable by its cross-shaped tip.

To use a Phillips head screwdriver, first make sure that the tip of the driver is the same size as the head of the screw. If it is not, you will either strip the head of the screw or damage the tip of the driver.

Once you have selected the right-sized driver, insert the tip into the head of the screw at a 45-degree angle. Apply pressure to one side of the handle while you turn the driver in a clockwise direction. Continue to apply pressure and turn until the screw is tight.

Tips for using a Phillips head screwdriver

Phillips head screwdrivers come in a variety of sizes, so it’s important to know which size you need before you start your project. The most common sizes are #0, #1, #2, and #3.

To figure out which size you need, first take a look at the screws you’ll be using. The size is usually printed on the head of the screw, so that’s a good place to start. If the size is not printed on the screw, you can try using a digital caliper to measure the diameter of the screw head. Once you have that measurement, match it up with the corresponding Phillips head size.

If you don’t have a digital caliper, there are a few other ways to determine screwdriver size. One way is to use a ruler or tape measure to measure the distance across the flats of the screw head (not the points). This measurement should correspond to one of the following sizes:

-#0 – 1/8 inch (3 mm)
-#1 – 3/16 inch (4.5 mm)
-#2 – 1/4 inch (6 mm)
-#3 – 5/16 inch (7.9 mm)

How to care for a Phillips head screwdriver

Phillips head screwdrivers are one of the most common types of screwdrivers, and they are named after their inventor, Henry Phillips. These screwdrivers have a cross-shaped tip that fits into the screws’ heads, making them ideal for use in a variety of applications. If you use a Phillips head screwdriver regularly, it’s important to take care of it so that it stays in good condition. Here are some tips on how to care for a Phillips head screwdriver:

-Store the screwdriver in a dry place: Moisture can cause the metal to rust, so it’s important to store your screwdriver in a dry place. A storage cabinet or toolbox is ideal.
-Keep the tip clean: Over time, dirt and debris can build up on the tip of the screwdriver. When this happens, it can make it difficult to insert the tip into the screw’s head. To keep the tip clean, use a soft cloth to wipe it down after each use.
-Avoid using excessive force: When using a Phillips head screwdriver, be careful not to apply too much force. This can damage the tip and make it more difficult to use in the future.


Once you know the size of the screw, finding the right sized screwdriver is easy. If you don’t have a caliper, a good rule of thumb is that the screwdriver shaft should be about half the length of the screw.


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