"Where can I find my model number?"
Where To Find Model Numbers
After prolonged use of a tool, you may need to replace a part. Two important pieces of information you need when looking for a replacement tool part are the tool’s model number and type number. This is important in ensuring an exact part match, which is crucial in the repair of your tool.
Every tool manufacturer uses a different model and type number system. Where exactly on the tool those numbers are located depends on the manufacturer. Some model and type numbers are easy to locate while others are difficult.
Model and Type Numbers
Model numbers distinguish between a manufacturer's tool models within a certain category (like drill/drivers, saws or nailers). For example, two different power sander designs from the same brand would be distinguished with two different model numbers.
However, manufacturers often update the design or features of a tool model or create different types of tools with the same model numbers. Most manufacturers distinguish the different types of a tool model from one another by assigning type numbers to them in addition to the model number.
Here is some important information to keep in mind when trying to find type numbers:

Type numbers vary from brand to brand. Sometimes an entire type number is just one digit or letter. Sometimes type numbers are long numbers or long combinations of numbers and letters.

"Type numbers" go by different names, depending on the manufacturer. They can be called the type number, engineering number, series number or bar code number.

Some model types are only distinguished by the year of the model.

Type numbers can be difficult to find. Sometimes they are located inside the tool’s housing (Ryobi does this). However, they are most commonly found on the name plate of the tools with the model number.

If a manufacturer does not anticipate redesigning a tool or machine model, the first type of that model often doesn’t have a type number assigned to it. Designs that follow that initial type usually have type number designations.

Some manufacturers do not use a type number system at all. Instead, they simply change model numbers for each new design. If this is the case with your tool, the model number is the only number needed to match the right parts to the tool or machine.
Searching Steps
Once you have the model and type number of the tool, use the “Search” tools on Tool Parts Direct to find the part you need. Follow these steps:
 Select “Search by model #” in the dropdown search field at the top right of the site.
 Type in the model number in the next blank search field.
 Hit “enter.” You will then see a listing of types that match the model number you entered. If there is only one type for that model, then only one option will be displayed.
 Match the type number (serial number, engineering number, etc.) to the correct tool name and icon displayed on the page.
 Click on the matching one. You’ll be taken to the parts page for that tool or machine.
You can also search by typing in the actual part number if you have it, or by keywords. Just select either “Search by Part Number” or “Search by Keyword(s)” in the dropdown menu. Then enter either the part number or whatever key word, and press “enter.” You will see a listing of matching items, and then you can click on whichever one you need.
Below are examples of major tool brands and how/where to find their model and type numbers.
Bosch

Uses a typical model number

Bosch calls their type numbers "engineering numbers"

Model number is almost always to the right of the Bosch logo

Bosch engineering numbers usually start with 0601 or 0603

If Bosch makes a service change on a particular tool model, they only change the last three digits of the engineering number
Bostitch

Model numbers can different from one to another

Model numbers can be letters, numbers or combinations

Bostitch tools do not have type numbers
Dewalt

Uses a typical model number/type number system

Model numbers are usually found at the top left of the name plate

Type numbers are usually right below the model numbers

Type numbers usually go by "Type 1," "Type 2," etc.
Hitachi

Do not have type numbers

Model numbers are usually under the Hitachi logo

When Hitachi updates a product, they change the model number to reflect the change

When searching for Hitachi parts, the model number is the only number needed
Karcher

Model numbers are combinations of letters and numbers that vary in length and usually start with letters

Type numbers are almost always eight digit numbers that follow this format: x.xxxxxx.x

Type numbers can be called part numbers on the tool name plate

The numbers are labeled clearly and visibly somewhere on the tool

Both the model and type number is needed when searching for Karcher replacement parts
Makita

Makita products do not have type numbers

Model numbers are usually to the right of the Makita logo

When Makita updates a product, they change the model number to reflect the change

When searching for Makita parts, the model number is the only number needed
Metabo

Uses a typical model number/type number system

Model numbers and type numbers are usually displayed to the right of the Metabo logo on the tool name plate

Type numbers usually begin with a "0" and are usually above the model number

Model numbers typically begin with letters or a word, and are usually under the type number
Milwaukee

Milwaukee calls their model numbers "catalog numbers" (CAT NO.)

Milwaukee calls their type numbers "serial numbers" (SER)

Catalog numbers are usually to the left of the Milwaukee logo, in the middle of the name plate

Serial numbers are typically displayed in the topright area of the name plate

Milwaukee serial numbers can be letters, numbers or both

Note that the entire Milwaukee serial number is not always used to identify the type,Sometimes it's just the first few letters or numbers.
Porter Cable

Uses a typical model number/type number system

Type numbers go by "Type1," "Type 2," etc.

Model number and type number are on different parts of some Porter Cable tools, like some air compressors

Model number and type number are normally displayed together, but can be arranged differently

Porter Cable products often have serial numbers as well, but these are usually not needed for ordering
Ridgid

Ridgid products do not have type numbers

Ridgid model numbers are usually in the topleft corner of the name plate

When Ridgid updates a product, they change the model number to reflect the change

When searching for Ridgid parts, the model number is the only number needed
Rotozip

Uses a typical model number/type number system

Model numbers are usually displayed at the topleft of the name plate, under the RotoZip logo.

Type numbers are usually long and start with "F." The number can be unlabeled
Ryobi can be a tricky one. The majority of Ryobi tools just have model numbers that change with each service update.
That means most Ryobi tools don't have type numbers, so type numbers are not needed for ordering.
Here's an example below of a typical Ryobi product that does not have a type number:

Most Ryobi tools and machines will not have type numbers, and only have model numbers.

When this is the case, the model number is usually displayed near the Ryobi logo
There is an exception, which can make finding some Ryobi model numbers and type numbers difficult.

Some Ryobi tools and machines have an additional number, like a type number.

This number is displayed somewhere on the Ryobi tool, often in a very difficult place to find, like inside the tool housing.

The number is found on a bar code and is usually referred to as the “barcode number."

Ryobi's gaspowered tools and lawnandgarden tools usually have bar code numbers.
An easy way to find out if your Ryobi product has a bar code number is by searching its model number on our site.
For Example:Ryobi 105R Electric Trimmer. To find out if it has a barcode, search Tool Parts Direct by entering the model number "105R" into the "Model Number" search field. You will be taken to a webpage with two “types” for this trimmer model. Those numbers in the parentheses, (512000001707000000) and (707000001). These are Ryobi bar code numbers (type numbers).
Skil

Uses a typical model number/type number system

Model numbers are usually displayed at the top of the Skil name plate

Skil uses the "Type 1" kind of type numbers or long serial numbers

Some Skill products have both kinds of type numbers
Worx

Uses model numbers that start with "W"

Type numbers are not needed to find parts for WORX tools