When you are shopping for Oster clipper blades you may not be sure what size blades you will need. It can be a bit confusing being there are so many different sizes to choose from. In this article, I will review the Oster clipper blade sizes and explain to you the purpose of each blade. This will help you determine the blades you need to purchase.
I have been using Oster clipper blades and Oster clippers ever since I started my pet grooming career back in 1978. I have tried other brands but in my experience, I have found Oster products to outlast the others. The blades are made using a patented Cryogen-X 12 step process that ensures superior cutting quality. Oster has been making high-quality products since 1924 and has built a very good reputation for themselves. The Oster Brand promises high performance, versatility, and durability in every product they produce.
Tips For Using Clipper Blades
- When using blade sizes #50 through to #10 you will need to make sure they do not get hot. A hot blade that cuts close to the skin will result in razor burning your pet. To prevent razor burn you need to check the blade while clipping your pet by tapping the blade on the underside of your wrist every few minutes. If it feels hot to you it feels hot to your pet. You will need to spray the blade with Cool Lube or change blades.
- Do not continue to use a dull blade. Because once the blade becomes dull it will pull your pet’s hair which can result in razor burn. Using a dull blade hurts and will make your pet fear the clippers.
- Use an old toothbrush to clean any hair that builds up between the teeth of the blade. This will keep the blade cutting smoothly and evenly.
- Never use a dry blade. Using a dry blade will cause more wear and tear on the blade and the clippers. Always use the proper oil on your blades.
- Handle your blades carefully. Because one drop on the floor can break the blade and/or make it dull, resulting in you having to spend more money.
- Do Not use your blades on wet hair. Because the hair will build up between the teeth of the blade resulting in an uneven cut. Water will also harm the finish and dull the blade.
- Scroll down on this page to watch the video on how to clean and oil your clipper blades.
Oster Clipper Blades Chart
Below you will find a chart of every size blade that Oster makes. You can see in this chart the recommended type of hair and body part that each blade size is used for. This will help you determine what blades will work best for your pet. Keep in mind that this chart shows the length of hair left when cutting against the natural grain of the hair/coat. You will not be cutting against the grain. You will be cutting your pet’s hair in the same direction of the grain. This will leave the hair a bit longer than stated on the chart.
Example: The #5 blade will cut the hair to 1/4 of an inch going against the grain and will cut the hair to about 3/8 of an inch going with the grain.
Oster Clipper Blade Sizes
#50 Blade: Cuts the hair down to 1/125 of an inch. This blade cuts close to the skin and is commonly used by veterinarians to remove hair before a surgical procedure.
#40 Blade: Cuts the hair down to 1/100 of an inch. This blade is perfect for shaving the pads of any breed that grows hair between the pads. The #40 blade is commonly used for shaving show Poodles feet because it gives a smooth velvety look. I have found the #40 blade to work very well at removing matted hair between the pads.
#30 Blade: Cuts the hair down to 1/50 of an inch. The #30 blade also works well for shaving pads.
#15 blade: Cuts the hair down to 3/64 of an inch. You can use this blade for cutting hair on the pads, face, and ears.
#10 Blade: Cuts the hair down to 1/16 0f an inch. The #10 blade is also used for pads, face, and ears but is recommended for animals with sensitive skin.
#10 Wide Blade: Cuts the hair down to 1/16 0f an inch. This blade is used for shave downs. The wider blade helps you get the job done faster.
#9 Blade: Cuts the hair down to 5/64 of an inch. You can also use this blade for shave downs. It will leave a bit more hair than the #10 blade.
#8 1/2 Blade: Cuts the hair down to 7/64 of an inch. I like to use this blade for Saddle Cuts in the summer. A Saddle Cut is a cut that removes the hair from the back leaving the skirt and legs longer. Example: Schnauzers, Cocker Spaniels, and West Highland terriers. The #81/2 blade leaves enough hair to protect the skin from getting sunburned.
Oster Clipper Blade Sizes Used for Full Body Cuts
A word of caution when using skipped tooth blades. Being the teeth are spaced further apart your pet’s skin can get caught between the teeth resulting in a gash. As you use these blades pull the skin tight and never run it parallel to lose skin, skin creases and rolls. Never use on animals with thin skin like cats and older animals.
#7 Blade: Cuts the hair down to 1/8 of an inch. This is a skip tooth blade that works well on matted and coarse coated animals. The #7 blade gives a nice natural blended look on most terriers.
#5 Blade: Cuts the hair down to 1/4 of an inch. This is also a skip tooth blade. You can use this blade on a course and thick haired animals. Example: Terriers, St. Bernards Newfoundlands, and horses,
#4 Blade: Cuts the hair down to 3/8 of an inch. This is another skip tooth blade that you can use on a course and thickly coated animals.
#3 Blade: Cuts the hair down to 1/2 of an inch. You will use this blade the same as the #4, #5 and #7 but it will leave the hair a bit longer.
The F stands for a full-toothed blade in the following 4 blades.
I personally like to use the full-toothed blades over the skipped tooth blades because they are much safer. The full-toothed blade does not have sharp points and the teeth are close together. They also make a smoother cut without leaving uneven razor marks on your pets coat/fur.
#7F Blade: Cuts the hair down to 1/8 of an inch. You can use this blade to shave the entire body. It is also commonly used for Saddle Cuts.
#5F Blade: Cuts the hair down to 1/4 of an inch. The #5 blade is one of the most commonly used blades because it gives a nice even short haircut. You can also use this blade for Lamb Cuts and Saddle Cuts.
#4F Blade: Cuts the hair down to 3/8 of an inch. This blade can also be used for full body haircuts but it will not cut through matted hair.
#3F Blade: Cuts the hair down to 1/2 of an inch. You can use this blade to keep the hair a bit longer than the #4 will.
#5/8 Blade: Cuts the hair down to 1/32 of an inch. I found this blade to work very well on smaller animals feet, ears and other difficult areas.
#7/8 Blade: Cuts the hair down to 1/32 of an inch. Another great blade for getting into those difficult areas.
Caring for your Blades
It is very important to know how to keep your blades clean and lubricated. The lubrication will keep them cutting smoothly and helps to keep them from becoming too hot.
You have invested a lot into your blades and you want them to last. Don’t you? The only way to make sure they last a long time is with the proper care and maintenance.
Now that you know more about Oster clipper blade sizes you will be able to purchase the blades you will need. I searched through Amazon to find the best price for each blade. For your convenience, simply click on the image of the blade/blades you want to purchase.
“Always be prepared with a spare”
I recommend purchasing two of each size blade you will be using. This will save you from stressing out if a blade goes dull in the middle of a haircut. Furthermore, no one wants to have a half groomed pet running around the house.
Remember to always take your time as you learn new techniques, you will get better with practice. The most important part of learning how to groom your pet is the bonding time you will be spending together.
If you have any questions or need some help please leave me a comment.
Happy pet grooming,