June 3, 2021

Dremel 8220 vs Bosch Gro | You Should Buy The …

The Dremel 8220 is a popular handheld rotary tool in the market, which is great for DIYers. Bosch GRO is also a great rotary tool, which is also very user-friendly and versatile. We compare the two, sharing our opinions and experiences. Here at The Whittling Guide, we are always on the hunt for new tools and gadgets that can perform a wide range of woodwork tasks, from sanding to carving and much more. They are tools that are simple, easy to use, and provide all the power you need, without the frustration of having to be fiddly to use.

Overview of the Dremel 8220 

The Dremel 8220 is a cordless rotary tool that has improved performance. It is a versatile tool that has a powerful motor that gives excellent performance at all speeds. The Dremel 8220 pairs with Dremel accessories. 

All the attachments that come with Dremel connect to the rotary tool, and they work with a wide range of projects. The 8220 has an ergonomic design that gives a 360-degree grip zone. You have control over the rotary tool in multiple positions. It uses the 12V MAX lithium-ion battery.

The battery has 33% more running time than the Dremel 8200 when cutting screws. It charges in one hour, and the use varies depending on use. What determines the run-time is the type of application, material, speed, and technique used. Numerous accessories come with the rotary tool. 

The micro case gives storage to all accessories. The speed varies from 5,000 to 35,000 rpm, and that gives you maximum control and gives precise results. One of the projects offered by the Dremel 8220 is carving. It caters to both soft and hard materials. 

Using the right tool allows you to cut any material of your choice. You add sparkle to your projects even in complicated areas on a wide range of materials. Restoration of furniture is allowed as you remove dust. 

Sanding and smoothing are allowed using the rotary tool. It weighs up to 2.1 pounds. Although it could have been lighter, it is easier to use than a corded tool. It has value for money. You are allowed to work at full speed. It is ideal for workshops.


  • Handy
  • High quality
  • Reliable
  • Cordless power
  • Impressive performance 


  • May feel a little Bulky

Features of the Dremel 8220

Powerful motor

The motor is powerful as it gives high performance. That makes it ideal for demanding applications. 

EZ Twist Nose Cap

The integrated nose cap allows you to make a fast accessory change. 

On/Off switch

The separate On/Off switch is easy to operate. You have control over your speed since the speed setting is easy to adjust. 

Battery Indicator Light

The battery indicator light gives you a notification when you have to charge your battery.


The Dremel 8220 rotary tool has a speed variance of 5,000 to 35,000 rpm. Compatibility to maximum accessories makes the rotary tool versatile. It is a precision tool that you have control of at all speeds.


The Dremel 8220 is a 12 Volt rotary tool. The power comes with cordless performance. It is easy to handle. The use of Lithium-ion battery technology holds a charge for up to 2 years. That does not come with memory effects. You are allowed to charge it anytime. The battery charges in one hour.

Overview of the Bosch gro 

The Bosch gro is a cordless rotary tool that grinds and cuts the material. That means there is no cord coiling that interferes with the performance of the rotary tool. You do not have to worry about an extension cord due to its short length. The powerful motor comes at high speed with a variance of up to 35,000 rpm. 

It allows the operation of numerous applications from hobby projects to professional tasks. These include sanding, routing, cutting, polishing, and drilling. The compact-sized rotary tool is easy to use. The ergonomic design makes it comfortable to use. The integrated LED lighting technology makes the process bearable and precise due to visibility. 

It illuminates your area of work in dark working areas. The switch adds lighting to your working area. You do not have to strain your eyes trying to adjust to the darkness so that you focus on your working area. The chances of having the battery overloading, overheat, and discharge is low due to the Electronic cell protection. It weighs up to 1.95 pounds. 

The 12Volt lithium batteries are readily available in online stores. When the motor is running, there is no noise. Although it comes at a steeper price, the features and functions provided make the operation worthwhile. The accessories are not as much as the Dremel 8220, but it makes attachments with the rotary tool. 

The large diameter fits better in your hands. That gives you more control when operating the tool. It is ideal for making cuts on metal items, building and repairing items. The batter comes with a long life. The rotary tool is excellent on multi-purpose cutting. 


  • Long battery life
  • Versatile
  • High speed
  • Compact size
  • Comfortable


  • Variable speed is not easy to dial.

Features of the Bosch gro

Electronic Cell Protection (ECP)

Electronic Cell Protection is a mechanism that protects the battery against overload, discharge, and overheating. That makes the rotary tool safe to use. The battery life is long. 

LED light

The LED light makes operations bearable. It focuses on your working area. You do not have to strain your eyes as you run your applications. A combination of the LED and the switch dial gives a clear sight to the user. 


The Bosch gro has a Li-Ion battery that lasts longer than standard batteries. Although their life depends on applications and the techniques used, they last longer.  


The speed rises to 35,000 rpm. That brings out maximum performance and a rotary tool that works on multiple applications at different tool speeds. That gives you control over the tool speed. You have fast work progress. 

Battery level indicator

The battery indicator comes with three LEDs. It notifies you when you have to charge the battery. That is convenient to the user. The tool does not switch off in the middle of a task. 


  • They both have low levels of noise. 
  • They both have an ergonomic design.
  • They both have a speed variance of 5,000 to 35,000 rpm.
  • They both come with a battery level indicator.


  • The Bosch gro has less noise than the Dremel 8220.
  • The Bosch gro comes with a LED light, whereas the Dremel 8220 does not have.
  • Dremel 8220 comes with more accessories than the Bosch gro.
  • Dremel 8220 is more affordable than the Bosch gro.


The Dremel 8220 is below 150, whereas the Bosch gro is below 200. That makes the Dremel more affordable than the Bosch.  Regardless of the Bosch having fewer accessories than the Dremel, the price remains steeper. That is due to the powerful motor and battery that gives an excellent performance to the rotary tool. Have you read our Dremel 4300 vs 3000?

David D. Hughes
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