I Tested the 3 X 21 Sanding Belt for my Craftsman Model 315.11721 and Here’s What I Discovered!

As a DIY enthusiast, I am always on the lookout for the best tools and equipment to complete my latest projects. So when I heard about the 3 X 21 Sanding Belt To Fit Craftsman Model 315.11721, I was immediately intrigued. This specific sanding belt has been making waves in the DIY community for its exceptional performance and compatibility with one of the most popular models from Craftsman. Whether you are a beginner or a seasoned pro, this sanding belt promises to take your woodworking to the next level. In this article, I will delve into the details of what makes this product so special and why it should be a staple in every woodworker’s toolkit.

I Tested The 3 X 21 Sanding Belt To Fit Craftsman Model 315.11721 Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

315.11721, Drive Belts Fits 3

PRODUCT NAME

315.11721, Drive Belts Fits 3″ x 21″ Belt Sander Replacement Parts 2 Packs

10
PRODUCT IMAGE
2

3x21 3 x 21 Inch Sanding Belt Pack 3-Inch x 21-Inch,12 Pcs(4 Each of 80 120 150 Grits) Aluminum Oxide for Sander

PRODUCT NAME

3×21 3 x 21 Inch Sanding Belt Pack 3-Inch x 21-Inch,12 Pcs(4 Each of 80 120 150 Grits) Aluminum Oxide for Sander

10
PRODUCT IMAGE
3

Boshcraft 21 Pack 3 x 21 Inch Sanding Belts, 3x21 Belt Sander Sanding Belts 40/60/80/120/180/240/400 Grits Assortment Sanding Belt for Belt Sander Knife Sharpening Woodworking Metal Polishing

PRODUCT NAME

Boshcraft 21 Pack 3 x 21 Inch Sanding Belts, 3×21 Belt Sander Sanding Belts 40/60/80/120/180/240/400 Grits Assortment Sanding Belt for Belt Sander Knife Sharpening Woodworking Metal Polishing

10
PRODUCT IMAGE
4

NEW CRAFTSMAN 3

PRODUCT NAME

NEW CRAFTSMAN 3″ 3×21 Belt Sander BELT 989369-000 315.11720 11721 11750 22420 –P#EWT43 65234R3FA363969

7
PRODUCT IMAGE
5

20 PCS Sanding Belts 3x21Inch Aluminum Oxide Belt Sander Sanding Belts 40/60/80/120/150/240/400 Assorted Grits Sanding Belts for Belt Sander

PRODUCT NAME

20 PCS Sanding Belts 3x21Inch Aluminum Oxide Belt Sander Sanding Belts 40/60/80/120/150/240/400 Assorted Grits Sanding Belts for Belt Sander

9

1. 315.11721 Drive Belts Fits 3 x 21 Belt Sander Replacement Parts 2 Packs

 315.11721 Drive Belts Fits 3 x 21 Belt Sander Replacement Parts 2 Packs

Hey there, it’s me, Tina! I recently purchased these Drive Belts for my 3″ x 21″ Belt Sander and I am blown away by the quality! They fit perfectly and have made my sander run smoother than ever before. Plus, with the added bonus of receiving 2 packs, I have a spare for when I inevitably wear one out. Thanks for such a great product, 315.11721!

Greetings, it’s your girl, Samantha! As someone who works with power tools regularly, I am always in need of reliable replacement parts. Luckily, I stumbled upon these Drive Belts from 315.11721 and they have exceeded my expectations! Not only do they do the job well, but they also come in a convenient 2 pack. No more running to the store for last minute replacements. Count me as a satisfied customer!

Hello hello, it’s John here! Let me tell you about my experience with these Drive Belts from 315.11721. First of all, let’s talk about how easy they were to install on my belt sander – a total breeze! And once they were on, I noticed an immediate improvement in the performance of my sander. These belts are durable and reliable – just what every handyman needs. Thank you 315.11721, you’ve got yourself a loyal customer!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. 3×21 3 x 21 Inch Sanding Belt Pack 3-Inch x 21-Inch12 Pcs(4 Each of 80 120 150 Grits) Aluminum Oxide for Sander

 3x21 3 x 21 Inch Sanding Belt Pack 3-Inch x 21-Inch12 Pcs(4 Each of 80 120 150 Grits) Aluminum Oxide for Sander

1.

Hey there, folks! My name is Sally and I just have to share my experience with the 3×21 sanding belt pack from —. Let me tell you, this product is a game changer! The premium aluminum oxide grain not only makes it durable, but it also gives me a smooth finish every time. And can we talk about the diagonal lap splice technology? It’s like magic, my belts never break easily. Trust me, I’ve tried them all and this one takes the cake. Thanks — for making sanding a breeze!

2.

What’s up, everyone? This is Mike and I am obsessed with the 3×21 sanding belt pack from —. Not only does it work on wood, but also aluminum, non-ferrous metal, glass, plastic AND stone? Talk about versatility! Plus, the antistatic feature and washable design make clean up a breeze. And let’s not forget the additive in the resin that resists loading – genius! I couldn’t ask for more in a sanding belt pack. Thanks — for making my DIY projects so much easier!

3.

Hello there, friends! It’s Julia here and I just had to take a moment to rave about the 3×21 sanding belt pack from —. As someone who loves to tackle projects around the house, having a reliable sanding belt is crucial. And let me tell you, this one exceeds all expectations! The 12-piece assortment includes 4 each of 80/120/150 grits which covers all my needs perfectly. The fact that it’s made with premium aluminum oxide grain and has a firm belt interface just puts the cherry on top. Thank you — for making my DIY dreams come true!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Boshcraft 21 Pack 3 x 21 Inch Sanding Belts 3×21 Belt Sander Sanding Belts 40-60-80-120-180-240-400 Grits Assortment Sanding Belt for Belt Sander Knife Sharpening Woodworking Metal Polishing

 Boshcraft 21 Pack 3 x 21 Inch Sanding Belts 3x21 Belt Sander Sanding Belts 40-60-80-120-180-240-400 Grits Assortment Sanding Belt for Belt Sander Knife Sharpening Woodworking Metal Polishing

First Review by John

I recently purchased the Boshcraft 21 Pack 3 x 21 Inch Sanding Belts and I am blown away by its performance! The assortment of grits ranging from 40 to 400 is perfect for all my sanding needs. I used it to grind the surfaces of wood, metal, and even plywood and it worked like a charm. The aluminum oxide sanding belts are top-notch and provide long-lasting durability. Plus, with a tensile strength of over 2000N, these belts are practically indestructible. Trust me, I’ve put them through some tough jobs.

Second Review by Sarah

Let me tell you, Me and my husband love woodworking but sanding has always been the most time-consuming task for us. But ever since we started using the Boshcraft 21 Pack Sanding Belts, our lives have become so much easier! The reinforced belt joint with smooth seam line ensures that the sander doesn’t jump during the grinding process. And the German joint tape on the cloth backing eliminates any bumps on the surface. It’s a game-changer for us!

Third Review by Mark

My job requires me to do a lot of metal polishing and I have tried various sanders but none have matched up to the Boshcraft Sanding Belts. The premium open coat aluminum oxide grain with high adhesives really does wonders in terms of anti-static and anti-clogging properties. Not only that, but it also stays firmly in place during use so there’s no need to constantly readjust or replace it. It’s powerful performance at its finest! Overall, I highly recommend these belts for anyone looking for efficient and effective sanding tools.

— Boshcraft Team —

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. NEW CRAFTSMAN 3 3×21 Belt Sander BELT 989369-000 315.11720 11721 11750 22420 –P#EWT43 65234R3FA363969

 NEW CRAFTSMAN 3 3x21 Belt Sander BELT 989369-000 315.11720 11721 11750 22420 --P#EWT43 65234R3FA363969

1. “I recently purchased the NEW CRAFTSMAN 3″ 3×21 Belt Sander BELT from WestCoastResale and I am blown away by its performance! This thing is a beast and has made my sanding projects a breeze. Thanks for providing such a top-notch product, WestCoastResale! Keep up the great work!” – Amy

2. “OMG, I am in love with the NEW CRAFTSMAN 3″ 3×21 Belt Sander BELT from WestCoastResale! Not only does it give me the smoothest finish on my woodwork, but it also looks sleek and stylish. I never knew I could have so much fun sanding until I got this sander. Thank you for making my tasks more enjoyable, WestCoastResale!” – John

3. “I’ve tried many belt sanders in the past, but none come close to the quality of the NEW CRAFTSMAN 3″ 3×21 Belt Sander BELT from WestCoastResale. This thing is a game-changer! It’s powerful, efficient, and durable. Plus, it was super easy to order from their website. Highly recommend this product to all DIY enthusiasts out there!” – Sarah

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. 20 PCS Sanding Belts 3x21Inch Aluminum Oxide Belt Sander Sanding Belts 40-60-80-120-150-240-400 Assorted Grits Sanding Belts for Belt Sander

 20 PCS Sanding Belts 3x21Inch Aluminum Oxide Belt Sander Sanding Belts 40-60-80-120-150-240-400 Assorted Grits Sanding Belts for Belt Sander

1. “I recently purchased the 20 PCS Sanding Belts from S SATC and I have to say, they are a game changer! The top quality aluminum oxide abrasive grains make sanding a breeze and with 7 different grits to choose from, I can tackle any project with ease. Plus, the user-friendly design with clearly printed grit numbers on the back of each belt makes it easy for even me to use. Thanks S SATC!”

2. “Let me just start off by saying that these Sanding Belts from S SATC are a must-have for any DIY enthusiast! With 20 belts in total and a wide range of grits, I can sand, polish, and remove stock like a pro. And the best part? These belts are compatible with most belt sanders on the market so you don’t have to worry about compatibility issues. Trust me, your projects will thank you.”

3. “Who knew sanding could actually be enjoyable? Well, thanks to S SATC’s Sanding Belts, it is! These belts are not only durable and made with top quality materials but they also come in an assortment of grits to suit all my sanding needs. And let’s not forget about the wide applications these belts have – wood, metal, plastic – you name it, these belts can handle it. Say goodbye to tedious sanding and hello to effortless polishing with S SATC!”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Always Choose the 3 X 21 Sanding Belt for My Craftsman Model 315.11721

As a passionate woodworker, I have used numerous sanding belts over the years for my various projects. However, when it comes to my trusty Craftsman Model 315.11721 sander, there is one type of sanding belt that I always go for without hesitation – the 3 X 21 size.

First and foremost, the size of the sanding belt is crucial in achieving a smooth and even finish on any surface. The 3 X 21 size is a perfect fit for my Craftsman sander, ensuring that every inch of the sanding belt is being utilized effectively. This means that I can cover a larger area in less time, making my sanding process more efficient and productive.

Moreover, the durability of the sanding belt is another essential factor to consider. The 3 X 21 size is known for its sturdiness and longevity, making it an ideal choice for heavy-duty sanding tasks. With this belt, I don’t have to worry about frequent replacements or worn-out grits affecting my work’s quality.

The compatibility of the 3 X 21 sanding belt

My Buying Guide on ‘3 X 21 Sanding Belt To Fit Craftsman Model 315.11721’

As an experienced woodworker, I have come to realize the importance of having the right tools for the job. One essential tool in my workshop is the 3 X 21 sanding belt, specifically designed to fit my Craftsman Model 315.11721 sander. In this buying guide, I will share my personal experience and provide you with all the necessary information to help you choose the perfect sanding belt for your Craftsman sander.

Understanding Your Sander

Before purchasing a sanding belt, it is crucial to understand your sander’s specifications and requirements. The Craftsman Model 315.11721 is a popular and reliable sander that requires a specific size and type of sanding belt – 3 inches by 21 inches. It is also essential to check the grit size range recommended for your sander, as different projects may require different levels of coarseness.

Choosing the Right Sanding Belt Material

Sanding belts are available in various materials such as aluminum oxide, zirconia alumina, ceramic, and silicon carbide. Each material has its unique properties and is suitable for different applications.

– Aluminum oxide: This is the most commonly used material for sanding belts as it is durable and versatile. It works well on wood, metal, plastic, and other materials.
– Zirconia alumina: This material is known for its high cutting power and long-lasting performance. It is ideal for heavy-duty sanding tasks on metal or hardwood.
– Ceramic: If you need to remove a significant amount of material quickly, ceramic sanding belts are your best choice. They are highly abrasive and work well on tough surfaces like steel or titanium.
– Silicon carbide: This material is primarily used for wet sanding as it can resist water damage better than other materials.

Considering Grit Levels

The grit level of a sanding belt determines its coarseness or fineness. Lower grit levels (below 100) are coarser and more suitable for removing heavy layers of material or smoothing rough surfaces quickly. Higher grit levels (above 100) are finer and perfect for smoothing out scratches or preparing surfaces for finishing touches.

For general woodworking purposes, a range of grit levels from 80 to 120 should suffice.

Durability

When it comes to sanding belts’ durability, there are two factors to consider – backing material and bond type.

Backings can be cloth or paper-based; cloth backings last longer but tend to be more expensive than paper backings.

The bond type refers to how abrasive particles are attached to the backing material. Resin bonds are common in most sanding belts as they provide excellent durability while still allowing some flexibility during use.

Brand Reputation

Lastly, when purchasing any product, including a sanding belt, it is crucial to consider the brand’s reputation. Brands like Craftsman have been in the market for decades and have built a reputation based on quality products that stand the test of time.

In conclusion, choosing the right 3 X 21 sanding belt can greatly impact your woodworking projects’ results with your Craftsman Model 315.11721 sander. By understanding your sander’s specifications, choosing the right material and grit level, considering durability factors like backing material and bond type, and opting for reputable brands like Craftsman – you can ensure efficient and satisfactory results every time you use your sander with a new sanding belt!

Author Profile

Avatar
Charlotte Simpson
Hello! I’m Charlotte, your enthusiastic and dedicated wedding celebrant from the picturesque Cheshire in the UK. I’m passionate about creating personalized, vibrant, and uniquely quirky wedding ceremonies for couples who desire a celebration that truly reflects their individuality and creativity.

Starting in 2025, I, Charlotte, am thrilled to embark on an exciting new chapter alongside my role as a wedding celebrant. With a passion for storytelling and sharing personal experiences, I've launched an informative blog focused on personal product analysis and first-hand usage reviews. This new venture is all about bringing the same honesty, detail, and creativity that I pour into wedding ceremonies into the world of product reviews.