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  • Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
  • Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
  • Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
  • Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
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3M Sanding Block Hardware, 5684 Hardware, Various sizes, Factory

4.6 out of 5 stars 170 ratings
$163.99 with 27 percent savings
List Price: $223.52
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Size: Various sizes
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Purchase options and add-ons

Brand 3M
Product Dimensions 5.25"L x 2.63"W x 5.25"H
Grit Type Coarse
Power Source Manual
Item Weight 1.7 Pounds

About this item

  • CONSISTENT DESIGN: Firm structure helps deliver more consistent sanding results.
  • IDEAL SIZE: Flexibility allows user to sand concave or convex curves.
  • EFFICIENTLY ENGINEERED: Helps improve the efficiency of sanding by hand.
  • COMFORTABLE: Fits comfortably in the user’s hand.
  • ENGINEERED FOR COMPATIBILITY: 3M Hookit attachment system makes it easy to change abrasives.
  • For industrial/occupational use only. Not for consumer sale or use.
› See more product details
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From the manufacturer

3M Hookit Sanding Block

3M Hookit Sanding Block helps make sanding easier in difficult locations. Use this accessory item with Hookit abrasive products to achieve more consistent, uniform sanding results. The sanding block when used in combination with Hookit abrasives is ideal for sanding filler, primer and other substrates.

Get Better Results When Sanding by Hand

3M Hookit Sanding Block is the perfect companion when using 3M Hookit abrasives. This sanding block fits comfortably in the hand to help reduce instances of hand fatigue. The block allows for a more even and consistent application of pressure, which delivers more uniform results. A sanding block also lets you apply more pressure than you could simply with your hand, a benefit that will speed how quickly you can complete your project.

Benefits of Sanding by Hand

3M blocks make hand sanding a more efficient task, which helps boost overall productivity when power sanding is not an option. Automotive restoration technicians like power sanding due to its speed and ease, but some applications do not allow for power sanding. In those cases, you can still gain efficiency by using 3M sanding blocks. Use these blocks for areas out of reach of power sanding tools. Hand sanding is also preferred for situations in which you need more precise control. With the speed of power sanders, one lingering pause can result in irreversible damage in certain situations. Hand sanding allows you to work at a pace that’s suitable for more delicate work. Hand sanding also produces less dust if that is a concern.

  • Sanding blocks delivers more consistent sanding results
  • Makes sanding challenging locations easier
  • Boosts the efficiency of sanding by hand
  • Blocks are designed to limit hand fatigue
  • 3M Hookit attachment system makes it easy to change abrasives

Enjoy the Ease and Speed of the Hookit Attachment System

These sanding blocks use the 3M Hookit attachment system for easy replacement of sandpaper sheets. Simply press on the abrasive sheet to get a secure grip, and then peel it away for easy removal. Hookit is the perfect time-saving answer when you're switching between abrasive grits frequently. Best of all, you can remove and reattach an abrasive that still has a useful service life. Let's say you need to switch to a different grit but the abrasives on the sheet you're currently using are not fully spent. Simply remove it and reattach later. Hookit ensures that you will get the same secure hold, which is an important advantage compared to pressure sensitive attachment products where the adhesive may be compromised after being removed.

Two Big Benefits of Using 3M Sanding Blocks

3M Hookit Sanding Blocks serve dual purposes of making the job of sanding go easier and the results better. These auto shop accessories are the product of seeking innovative ways to boost efficiency and effectiveness on the job.

Product information

Brand 3M
Product Dimensions 5.25"L x 2.63"W x 5.25"H
Grit Type Coarse
Power Source Manual
Item Weight 1.7 Pounds
UPC 641125373442 051131056848
Global Trade Identification Number 50051131056843, 00051131056848
Item Weight 1.7 pounds
Department unisex-adult
Manufacturer 3M
ASIN B00A9ZKSE4
Item model number 5684
Customer Reviews
4.6 out of 5 stars 170 ratings

4.6 out of 5 stars
Best Sellers Rank #176,811 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
#140 in Sanding Blocks
Is Discontinued By Manufacturer No

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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3M Sanding Block Hardware, 5684 Hardware, Various sizes, Factory

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Product Description

3M Hookit Sanding Block Kit 05684 makes it easy to reach difficult, out-of-reach areas when sanding. Change sandpaper and abrasive sheets quickly with the 3M Hookit Sanding Block Kit and the 3M Hookit system, offering faster change-outs of abrasive sheet material. 3M Hookit Sanding Block Kit 05684 helps increase your control and helps deliver uniform results - it’s easy to use from start to finish. Block sizes include 1-3/8 in x 10-3/4 in, 1-1/4 in x 10-3/4 in Round, 2-1/2 in x 5-3/8 in, 2-5/8 in x 5-1/4 in, 2-5/8 in x 10-3/4 in, and 2-1/8 in x 10-3/4 in Teardrop. This must-have addition to your auto shop is ideal for delicate work on many substrates and consistently delivers throughout its long product life.

Top Brand: 3M

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Important information

Legal Disclaimer

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert. For additional product information, visit www.3M.com.

Customer reviews

4.6 out of 5 stars
170 global ratings

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Top reviews from the United States

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  • jessica
    5.0 out of 5 stars Quality block
    Reviewed in the United States on March 9, 2025
    Size: 5/8 in X 2-1/2 in X 5-3/8 inVerified Purchase
    I've been using these blocks for many years, good quality block, arrived promptly. Will purchase again
    Helpful
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  • Maria Garnica
    5.0 out of 5 stars A tiempo y era lo que esperaba
    Reviewed in the United States on November 5, 2024
    Size: 70MM x 198MMVerified Purchase
    Me agrado lo que pedí
    Customer image
    Maria Garnica
    5.0 out of 5 stars
    A tiempo y era lo que esperaba

    Reviewed in the United States on November 5, 2024
    Me agrado lo que pedí
    Images in this review
    Customer imageCustomer image
    Helpful
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  • This pants is amazing and cozy and good quality
    5.0 out of 5 stars Good quality
    Reviewed in the United States on July 28, 2023
    Size: Various sizesVerified Purchase
    Professional sander
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  • Pedro Salas
    5.0 out of 5 stars Muy buen producto
    Reviewed in the United States on April 12, 2023
    Size: 70MM x 127MMVerified Purchase
    Muy buen producto a un precio razonable.
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  • Craig
    4.0 out of 5 stars Coat is a bit high for what it is
    Reviewed in the United States on August 11, 2022
    Size: 70MM x 198MMVerified Purchase
    Pros
    Excellent dust removal
    Sand paper never clogged (3m cubitron p320)

    Cons
    Cost is high
    Don’t expect to connect it to a typical shop vac with what’s in the box. (Get creative with additional adapters)

    Over all it works great for removing primer dust while blocking and preventing the paper from clogging up. 4 stars due to it being over priced for what it is and listing not including the dimensions of the fittings.
    One person found this helpful
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  • Spencer
    5.0 out of 5 stars Worth every penny
    Reviewed in the United States on February 25, 2020
    Size: Various sizesVerified Purchase
    Great blocks, I own a production collision shop and I would recommend these from the body man to preppers. The teardrop shaped block is great for those sharp body lined panels. I like dura block don't get me wrong, but these are worth every penny and then some
    One person found this helpful
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  • Kari Battles-Brown
    5.0 out of 5 stars Versatile block
    Reviewed in the United States on November 7, 2022
    Size: 2-18 in X 10-3/4 inVerified Purchase
    This is one block I use almost everyday.
    Helpful
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  • yulietter
    5.0 out of 5 stars Perfect
    Reviewed in the United States on November 10, 2022
    Size: Various sizesVerified Purchase
    Good very good
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Top reviews from other countries

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  • Daisy
    5.0 out of 5 stars Recomendado calidad - precio
    Reviewed in Mexico on September 22, 2022
    Size: Various sizesVerified Purchase
    Cumple muy bien su función
    Report
  • Liliane Lavoie
    5.0 out of 5 stars Bonne tenue en main.
    Reviewed in Canada on May 14, 2024
    Size: Various sizesVerified Purchase
    Ponçage d automobile
    Report
  • Iván Efren
    5.0 out of 5 stars Recomendado!!
    Reviewed in Mexico on November 11, 2020
    Size: 70MM x 198MMVerified Purchase
    Excelente herramienta, muy útil para trabajos profesionales.
    Report
  • noel m.
    5.0 out of 5 stars always protect your tools
    Reviewed in Canada on March 18, 2023
    Size: Various sizesVerified Purchase
    I like everything about it
    Report
  • Justin
    5.0 out of 5 stars buy buy buy
    Reviewed in Canada on December 4, 2022
    Size: Various sizesVerified Purchase
    love this tool
    Report