Best Cordless Rotary Tool Compared: Dremel vs Milwaukee vs Ryobi

Looking to add a cordless rotary tool to your DIY arsenal? These versatile gadgets are essential for grinding, polishing, cutting, sanding, engraving, and more. Whether you're working on woodworking, metalwork, or crafting projects, a cordless rotary tool gives you the freedom to work anywhere without being tethered to a wall outlet.

In this comparison, we’ll break down the top three models from industry-leading brands—Dremel, Milwaukee, and Ryobi. We'll compare performance, battery life, features, and value to help you pick the perfect tool for your projects.

Why Go Cordless? Pros & Use Cases

Cordless rotary tools offer more flexibility and mobility. They're ideal for:

• Home and DIY use
  

• Small workshop spaces
  

• Intricate projects requiring maneuverability
  

Use cases include:

• Polishing jewelry
  

• Cutting screws and bolts
  

• Engraving wood or glass
  

• Sanding corners or tight spots

Quick Comparison Table

Brand	Model	Battery Life	RPM Range	Attachments	Link
Dremel	8220-1/28	~30 mins	5,000–33,000	28 included	Buy on Amazon
Milwaukee	M12 Rotary Tool	~40 mins	5,000–32,000	Few included	Buy on Amazon
Ryobi	P460 Rotary Tool	~45 mins	5,000–34,000	Tool only	Buy on Amazon

Dremel 8220 Review – The Go-To for Precision

Dremel’s 8220 is a favorite among hobbyists and professionals for its precision and versatility. It’s lightweight, powerful, and includes a 28-piece accessory kit.

Pros:

• High RPM for fine work
  

• Lightweight and ergonomic
  

• Compatible with all Dremel accessories
  

Cons:

• Shorter battery life (~30 mins)
  

• Pricier than Ryobi
  

Best For: Engraving, detailed sanding, craft work, and general DIY tasks.

Milwaukee M12 Rotary Tool – Built for Power

The Milwaukee M12 is known for its rugged design and heavy-duty performance. Though it doesn't come with many attachments, it’s built to last and delivers consistent power.

Pros:

• Durable and high-torque
  

• Uses M12 battery system (interchangeable)
  

• Excellent for cutting and grinding
  

Cons:

• Fewer accessories included
  

• Bulkier and heavier than Dremel
  

Best For: Contractors, woodworkers, and users already in the M12 ecosystem.

Ryobi P460 Review – Budget-Friendly Versatility

Ryobi’s P460 is a solid option for users on a budget or those who already own Ryobi’s ONE+ battery system. Though it lacks included accessories, it performs well for the price.

Pros:

• Long battery life (~45 mins)
  

• Great speed range
  

• Affordable and reliable
  

Cons:

• Sold as tool-only (no battery or accessories)
  

• Not as powerful as Milwaukee
  

Best For: DIY beginners, budget-conscious users, casual home projects.

Key Buying Factors to Consider

Before making your purchase, consider the following:

• Battery Compatibility: Do you already own tools in that brand's ecosystem?
  

• RPM Range: Higher RPM = smoother finishes
  

• Accessory Inclusions: Buying kits can save money if you’re just starting out
  

• Weight & Ergonomics: Especially important for long or precision tasks

Final Verdict – Which One Should You Buy?

• Best Overall: Dremel 8220 – Balanced performance and accessories
  

• Best for Power: Milwaukee M12 – Ideal for demanding tasks
  

• Best Budget Pick: Ryobi P460 – Great entry-level tool
  

Each of these tools serves a different type of user. Choose based on your primary use case, budget, and whether you already own compatible batteries.

FAQs: Cordless Rotary Tools

Q1: What is the best cordless rotary tool for beginners? A: The Dremel 8220 is beginner-friendly thanks to its high RPM, ease of use, and accessory kit.

Q2: Can cordless rotary tools cut metal? A: Yes, with the right cutting discs, tools like the Milwaukee M12 are great for cutting metal.

Q3: Are Dremel accessories compatible with other brands? A: Most are compatible with standard 1/8" collet sizes used in Ryobi and Milwaukee.

Q4: How long does the battery last on average? A: Expect 30–45 minutes of continuous use depending on the model and task.

Q5: Which tool offers the best value for money? A: Ryobi P460 is the most affordable option and delivers solid performance.

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