March 29, 2021

Dewalt dwe6423k vs dwe6421k | Which Random Orbit Sander To Pick

Choosing between the Dewalt dwe6423k vs dwe6421k is a complex exercise since they have similarities and unique features that one would not want to miss. Both tools come with strengths and weaknesses that I will take you through in this article. They have the same weight, height, and width. They have the same price range. However, two features separate the two that are worth considering.

Overview of the DWE6423k

The DWE6423k has a 3 amp motor that spins from 8,000 to 12,000 OPM. The height draws you closer to the machine no matter how tall or short you are. That will relieve you from the strain that comes with reaching out to machines. The counterweight design is noticeable at the top of the works as a shock absorber. 

You do not feel vibrations and that improves the comfortability of the machine. The rubber over-mold takes care of tough areas of the machine. The dust collection system keeps you safe from sawdust and makes your tool last longer. It comes with a dust bag handled using one hand. The bag does not require you to empty it in a short period. The dust port fits directly to the DWV010 or the DWV012 dust collectors. The sander weighs up to 4 pounds. 

The package includes the sander, dust bag, owner’s card and a carrying bag. It is ideal for DIY enthusiasts since it is easy to use and connects to the vacuum. The sander is smooth and easy to maneuver. It is not difficult to use on tricky parts of an item. You need to make sure that you have lined up the holes at the bottom perfectly so that changing the sanding pads will not be difficult. 


  • Smooth
  • Fast
  • Low vibration
  • Light and ergonomic
  • High quality


  • An adaptor for the shop vac is required
  • The dust bag could be bigger

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Key features of the DWE6423k

Dust collection system

The improved dust-sealed switch protects you from dust ingestion that makes your machine last longer. The dust collection system keeps your workshop dust-free. The dust bag is a one-handed locking bag that is easy to use. The dust port fits perfectly into the DWV0110 or DWV012. You can add an adapter if you wish to use a shop vac. You can have your machine connected to a universal Quick Connector DWV9000. 

Safety features

Safety features are there to ensure that you have a safe workplace. Rubberized handles prevent your hands from slipping. It protects your tool from damage on hard surfaces and the ergonomic design protects you from electrical shock. The dust-sealed switch makes you safe from just saw. The vacuum locking system allows you to have a secure dust bag attachment.  

RPM Speed

The machine operates within a range of 8,000 and 12,000 OPM. That makes it faster and gives a smooth finishing. The variable speed control system makes it accurate. The polishing process is made smooth. 


The handle makes the tool handy when operating. The Dewalt sander has a large palm grip just above the sander. The handles are rubberized, and that is very comfortable to hold. The handles give better sanding in tricky areas. Your hands are safe on harsh surfaces. 

Powerful motor

The 3 amp motor produces spins between 8,000 and 12,000 OPM. The orbit is electric-powered, and it makes vibrations. However, you do not feel the vibrations due to the counterweight design that absorbs the vibrations. The motor has an air vent for high air circulation that controls overheating. The cooling system is effective.

Overview of the Dewalt dwe6421k

The Dewalt dwe6421k is a palm grip orbital sander that is compact-sized. It has a rubber design that makes it easy to handle with one hand. It comes with a dust-sealed switch that prevents clogs of dust inside the machine. That increases the durability of the tool. 

The machine comes with a dust-sealed switch and a vacuum beneath the machine that disposes of dust, whilst the tool is in use. The removal and locking of the dust collecting bag are easy. It has a one-hand locking feature. The machine operates at a speed of 12.000 OPM. The sander moves in a random pattern. That leaves your material with a smooth surface that does not have scratches. 

The hand sander is very short. That is convenient to the user. You will be close to your workpiece. However, that does not compromise your safety. The counterweight design reduces vibration. That gives you more comfort from the electric machine. The dust port fits directly to the DWV010 or the DWV012 dust collector. You can even connect the dust port to multiple vacuum systems with 1-1/4 inch hoses. You are allowed to use the DWV9000 Universal Quick Connector.


  • Affordable
  • Compact size
  • Easy to operate with one hand
  • Fast and smooth
  • An impressive dust collection system


  • Fixed speed limit
  • It has plastic pads

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Key features of the Dewalt  dwe6421k

Dust collection system

The machine has a fully-dust-sealed switch. That makes it free from the accumulation of sawdust inside the machine. In this case, it stays longer than expected. Chances are low that sawdust clogs up the socket. It also comes with a dust collecting channel below the tool. It gets rid of dust, whilst the machine is in use.

Powerful motor

The 3 Amp motor spins the pad at 12,000 OPM. That is ideal for fast material removal. The DWE6421K has a fixed speed rate that makes it easy to control the machine. The hook-and-loop feature makes it efficient. 

Locking system

The locking system that comes with the machine makes it easier to lock the device when not in use. You control it using one hand. The unlocking system is as easy as the locking system. The locking system is there to keep you safe. There is a large handle that makes handling easy and comfortable.

Sanding pads

The DWE6421K has a Velcro attachment system known as a hook and loop system. It is for attaching sand pads to the device. The attachment is easy as well as the removal of the pads. They have to stay in place even when you are using the machine.


  • They are both palm grip orbital sander.
  • Both products have the same height (5.5 inches), width and depth.
  • They have 3 Amp motors.
  • They have the same dust collection system that has a dust collecting bag.
  • They use a 5inch sanding pad.
  • They have a vivid exposure of the activities taking place between the sandpaper and the materials due to the reasonable size.
  • They both weigh up to 2.9lbs. They are lightweight.
  • They both reach the maximum sanding speed of 12.000OPM.
  • They are both faster and smoother.
  • They fall under the same price range.


  • The DWE6421K has a fixed speed that is 12.000 OPM whereas the DWE6423K has a speed variance that ranges from 8.000 up to 12.000 OPM.
  • The DWE6423K is more affordable than the DWE6421K.


Both products fall under the same price range. They are all under 100. However, the DWE6423K is more affordable than the DWE6421K. You only save a few bucks if you are to go for the DWE6423K.


After a thorough examination of the two products above, notable unique features will point to your best pick. DWE6421K is not complicated hence it is ideal for DIY enthusiasts. It is durable and affordable. However, the DWE6423K is more affordable than the DWE6423K. It is for professionals and flexible when you are operating the machine. In this case, when you have a tight budget, you know the perfect tool.

David D. Hughes

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