Black & Decker 3 in. x 21 in. Dragster Belt Sander

3 in. x 21 in. Dragster Belt Sander

Features

  • 3 in. × 21 in. angled sanding belt for sanding near edges
  • 7.0 amp brushed motor
  • Adjustable 3-position handle for multiple holding orientations
  • Flush, low-profile design for extended reach and vertical-surface sanding
  • Retractable hood to expose the top of the sanding belt for use in tight spaces
  • On-board dust collection with an easy-empty dust bag
  • Includes a medium-grit sanding belt

Specifications

Motor (Amps) 7.0 A
Motor Type Brushed
Power Source Corded
Belt Size 3 in × 21 in
Product Application Sanding
Height 6.4 IN
Length 15.4 IN
Width 6.5 IN
Weight 7.6 LB
Warranty 2 Year Limited Warranty
Battery Included No
Gtin 00028877479453
Max Rpm

Corded belt sander with a 3 in. × 21 in. angled sanding belt and a 7.0 amp brushed motor. It is designed to sand close to adjoining edges and to reach vertical surfaces. The tool includes an adjustable three-position handle, a retractable hood to expose the top of the sanding belt for tight spots, and an on-board dust bag for particle collection.

Model Number: DS321-1

Black & Decker 3 in. x 21 in. Dragster Belt Sander Review

3.7 out of 5

When tackling any woodworking project, the right tools can make a significant difference in efficiency and results. Recently, I had the opportunity to work with the Black & Decker 3 in. x 21 in. Dragster Belt Sander (model DS321-1), an affordable tool designed for sanding surfaces and edges. Here’s an in-depth look at my experience with this belt sander.

Design and Features

The first thing that struck me about the Dragster Belt Sander was its thoughtful design. The 3 in. x 21 in. sanding belt is well-sized for various sanding tasks, and the low-profile design allows for extended reach and vertical surface sanding. One of the standout features is the adjustable 3-position handle, which provides comfort in different orientations, making it easier to maneuver the tool in tight or awkward spaces.

Another notable feature is the retractable hood, which offers versatility for sanding in confined areas. This flexibility is a significant advantage, especially when working on complex projects that require precision. Additionally, the on-board dust collection system with an easy-empty dust bag aims to keep the workspace cleaner, although its effectiveness is debatable, as I’ll discuss later.

Performance

When it comes to performance, the Dragster Belt Sander offers a mixed bag of results. The high-performance motor provides ample power for most sanding jobs, making quick work of removing material. However, the tool is relatively lightweight at 7.4 lbs, which means you may need to apply additional pressure during use. This could lead to user fatigue over longer periods, especially if you’re accustomed to heavier sanders that rely more on their weight to do the work.

The belt changing mechanism is straightforward and tool-free, which is a plus. However, adjusting the belt tracking can be a bit tricky. I found that the belt often wandered off-center, requiring frequent adjustments. This issue can be frustrating, especially when you’re in the middle of a project and need consistent performance. Despite this, once the belt is properly tracked, it tends to stay in place reasonably well.

Dust Collection

One of the main selling points of the Dragster Belt Sander is its dust collection system. In practice, however, the dust collection bag leaves much to be desired. While it does capture some of the dust, a significant amount still ends up on the workbench and surrounding area. This isn’t entirely unexpected for a tool in this price range, but it’s worth noting if you’re working in an indoor or enclosed space where dust management is crucial.

Durability and Build Quality

The Dragster Belt Sander’s build quality is another area where it shows its budget-friendly nature. The tool features a lot of plastic components, which may not hold up under heavy use. During my time with the sander, I didn’t encounter any immediate issues with durability, but I did notice that some parts, like the belt tension adjustment lever, felt flimsy and prone to breaking with frequent use.

The motor’s longevity is also a concern. While it performed well during my projects, there are reports of the motor failing after moderate use. This suggests that the tool may not be the best choice for professionals or those who plan to use it extensively. For occasional DIY projects, though, it should suffice.

Noise and Heat

As with many power tools, noise and heat are factors to consider. The Dragster Belt Sander is quite loud, so ear protection is a must during use. Additionally, the tool tends to run hot after extended periods, which can be uncomfortable and may even affect performance. Taking breaks during prolonged use can help manage this issue.

User Experience

Despite its shortcomings, the Dragster Belt Sander has some user-friendly features that enhance the overall experience. The three-position handle and low-profile design make it easier to control and maneuver, especially in tight spots. The small front roller allows for close sanding near edges, which is particularly useful for detailed work.

The tool’s lightweight nature can be both a pro and a con. While it reduces user fatigue in short bursts, it requires more effort to achieve the same results as a heavier sander. For less demanding tasks or short projects, the lightweight design is an advantage.

Final Thoughts

Would I recommend the Black & Decker 3 in. x 21 in. Dragster Belt Sander? It depends on your needs. For occasional DIY enthusiasts or those tackling small to medium-sized projects, this sander offers good value for its price. It’s easy to use, has decent power, and includes some features that make it versatile and user-friendly.

However, if you’re a professional or need a sander for heavy-duty use, you might want to consider investing in a higher-end model. The build quality and durability of the Dragster Belt Sander may not meet the demands of extensive or frequent use, and the dust collection system could be more efficient.

In summary, the Dragster Belt Sander is a solid choice for budget-conscious DIYers who need a reliable tool for occasional use. It has its flaws, but for the price, it delivers satisfactory performance and versatility. Just be prepared for some trade-offs in terms of build quality and dust management.



Project Ideas

Business

On-Site Door Edge Tuning

Offer a mobile service to fix sticking or rubbing doors without removing them. The angled belt sands close to jambs and hinges, the low profile works vertically, and the dust bag minimizes mess—15–20 minutes per door for quick, profitable calls.


Trim & Casing Refresh for Painters

Partner with painting contractors to provide fast scuff-sanding of baseboards, casings, and wainscoting in-place. The 3-position handle improves control along long runs, and the retractable hood helps hit tight inside corners, accelerating paint prep.


Stair Tread and Handrail Refinishing

Package a dust-controlled stair rehab: uniform sanding of treads, nosings, and handrails to bare wood or paint-ready scuff. Provide per-flight pricing with add-ons for banisters. The top-exposed belt reaches under balusters and up to spindles’ bases.


Reclaimed Wood Prep for Makers

Sell prepared boards to local crafters/Etsy sellers: you source pallet/barn wood, then de-grime and surface-sand to consistent thickness/texture. The sander’s aggressive removal speeds production; dust collection keeps a small shop cleaner.


Beveled Board & Shelf Micro-Factory

Produce small-batch charcuterie boards and floating shelves with clean, repeatable chamfers and flush edges. Use jigs with the belt sander for consistent bevels; market as minimalist, ready-to-finish blanks or finished goods.

Creative

Live-Edge Shelf Smooth & Blend

Use the angled 3 × 21 belt to carefully transition from bark to sapwood on live-edge slabs, then retract the hood to use the top of the belt for spot-flattening cupped areas. The low-profile nose lets you sand right up to wall-side edges so the shelf sits flush once mounted.


Mid-Century Plywood Side Table

Build a simple hairpin-leg table, then use the sander to flush-trim plywood edge banding and create consistent 45° chamfers around the top. The adjustable handle gives precise control along long edges; the dust bag keeps cleanup minimal indoors.


Stair Tread Refresh

Revive worn stairs by uniformly leveling treads and nosings. The retractable hood exposes the top belt to sneak into tight corners near stringers, while the sander’s flat platen keeps each tread consistent for a professional, squeak-free feel.


Skate/Longboard Deck Shaping

Rough-shape a plywood deck, bevel the perimeter, and smooth wheel-well cutouts. The flush design lets you work vertical surfaces on the bench edge, and the medium-grit belt quickly refines curves before final hand sanding.


Upcycled Pallet Accent Wall

Prep reclaimed boards by knocking down splinters, evening thickness variations, and cleaning grime. The angled front reaches tight ends near knots and checks, producing a rustic but touch-safe finish for an indoor feature wall.