PORTER-CABLE PCC640B Vs. PCC641 Impact Drivers

Homeowners and professionals alike find themselves utilizing impact drivers rather than cordless drills, particularly with the arrival of bit sets with hex-shank accessories that are particularly engineered to withstand the strains that these drivers put on a bit.

In addition, impact drivers are of high-torque devices mainly utilized for tightening nuts and driving screws. Impact drivers’ chuck accepts only bits that come with a ¼ inch hex shank. That’s why you either slip the bit into the chuck or you either pull up on the chuck sleeve to insert a bit.

Impact drivers are smaller and lighter compared to drill drivers, and even though they’re not as versatile, impact drivers will normally perform many of the same utilities. Because impact drivers’ torque output is relatively higher compared to a regular drill driver, they tend to get through work much faster.

That said, we will be reviewing Porter-Cable models to help and show you what kind of impact driver is suitable for your current needs. So, stay tuned! 

PORTER-CABLE PCC640B vs. PCC641 Impact Drivers

1. PORTER-CABLE 20V MAX Cordless Impact Driver, Tool Only (PCC640B)

PORTER-CABLE 20V MAX Cordless Impact Driver, Tool Only (PCC640B)


What You Will Get With This Product?

The design of this unit prioritizes the performance over other factors. The manufacturers wanted the unit to feel like the most ideal drivers in the market when driving a fastener. To get this goal while not also driving its price real high, the designers dialed down the durability of this unit to the lower end of the pro market. That’s why; it is very a capable driver that operates really well for low to medium duty tasks.

Furthermore, its motor is its primary source of professional quality. In fact, it is rated at 121 feet per pounds and 2,900 revolutions per minute, the unit places in the upper quarter of the performance charts. Additionally, the unit doesn’t come with externally accessible motor brushes. Its two halves of its plastic shell need to be separated so it can access the brushes.

Also, while its work light generates bright white light, its location is just above the trigger of the unit, this help precludes lighting area above the impact point. The unit’s barrel cast is shadow over the area no matter how far the unit is from the operating surface. Normally, enough light manages to find its way to where you desire it, but the work light’s design is certainly a far cry from the best out there in the market.

Its light can be activated through a trigger. It comes on when the trigger is pressed and extinguishes when the trigger is released. With a light touch, it’s possible to turn the light on without engaging the unit’s motor.


  • Both  fast and powerful
  • Fast charging battery
  • Great magnetic bit holders
  • Its metal chuck is easy to use while wearing gloves
  • Uncompromising performance at low to medium volume


  • Generates a noticeable amount of startup torque
  • Trigger has a lot of dead space 


Top FAQs on This Product:

Q: Is this model brushless?

A: This unit is not brushless.

Q: Is this a ½ inch or ¼ inch drive?

A: The PCC640B ¼ inch quick load chuck for one handed bit changes

Q: What’s the difference between PCC640b and PCC641?

A: One comes with better indicator, while the other comes with a screw but holder.

Q: Will this use the same battery as PCC601?

A: Yup! All Porter-Cable 20V batteries and charges are interchangeable within Porter-Cable 20V product line.

What Take on This Product:

The chuck of this unit is constructed out of metal. A deep grove around the unit’s entire circumference makes its chuck very easy to grip while the user is wearing gloves. In addition, all of its components appear to be machined well for a long service life. Similar to any good chuck, its design ejects bits when opened.

Moreover, its trigger is very accurate though it’s also quite hard to use. Around half of the trigger’s range looks a dead space. Slight changes in pressure on the unit’s trigger come with a large effect on the motor’s speed. Acquiring fasteners started takes a bit of effort, but seeking a motor speed in the middle of the range is quite impossible. This is a driver that’s good to run at full speed consistently.


2. Porter Cable 20v Max Lithium Ion 1/4″ Hex Impact Driver (PCC641 Bare Tool)

Porter Cable 20v Max Lithium Ion 1/4" Hex Impact Driver (PCC641 Bare Tool)


What You Will Get With This Product?

This unit is an impressive power tool for the DIY-enthusiasts or handyman for light to medium tasks around the worksite, or the professional contractor, and even at home. This unit is very user-friendly, packed with many decent features, and comes with a very reasonable price that makes it a great deal! Even though this unit has good price, some consumers think that this trait may not be that good after all as low price normally implies low quality.

Furthermore, this unit boasts a powerful punch of 1,450 inch per pounds of torque, a speed of up to 2,900 RPM, and 3,100 BPM. If you’ve ever installed a cabinet, you’d know that this unit is a very ideal power tool for that certain purpose. You can also go from drill to driver and the unit will still perform really well. You won’t get any denting or nicking of the cabinet.

In addition, this unit is very well-made that in fact some consumers find a bit on the long and bulky side, measuring 9” x 3”. This is particularly important for working in confined and tight spaces. Its weight is only around 1.3 lbs. without its battery. Its impressive balance allows users to work longer without really straining their arms or worse injuring the wrists or hands.

It comes with a fast release ¼ inch head hex chuck that lets users to immediately and effortlessly change bits with just a single hand. This is one feature you’ll find that adds a fine touch to the unit. Bit replacement can be done without presenting any fuss, thus you can quickly pop in a new bit without thinking twice about it.


  • Engineered with two speeds and 22 clutch settings
  • Features an integrated LED light
  • Comes with a ¼ inch hex head chuck for quick and easy bit replacement
  • Compact and lightweight ergonomic design
  • Comes with powerful motor that gives 1,450 inches per pounds of torque


  • Sold as a bare tool only
  • Not really ideal for heavy duty work


Top FAQs on This Product:

Q: Will this unit be able to loosen and tighten lug nuts of car tires?

A: For some consumers, it can. But most of the time, it’s only applicable for those light lug nuts.

Q: Can you add a belt clip to it?

A: Sadly, Porter-Cable didn’t engineer this certain impact driver to have a belt clip, and so there’s nowhere on the unit to properly attach one. That’s why a belt clip is not even a good option.

Q: Can it be used as an impact wrench?

A: You want to be careful with how much strain you put the tool under so that you don’t get its motor burned.

Q: What’s the difference between PCC641 and PCC640?

A: The PCC640 is slightly more powerful but both models use the same battery.

What Take on This Product:

On the unit, you’ll see a two magnetic bit holders placed on top of its motor and a clip on the base of the battery slide. This model can hold 3 bits all at a time. Similar to most Portable-Cable power tools out there, this unit is covered by a limited warranty for certain defects because of faulty workmanship or materials for a pretty long amount of time. Similar to most warranties out there, this condition won’t cover components failure due to regular normal wear and tear, and of course tool misuse or abuse.


What is the Difference between PORTER-CABLE PCC640B vs. PCC641?

The PCC640B’s black rubber incorporated on it protects most of the barrel and grip of the unit from particular damage. Its bumpers on the barrel are certainly thick, but this attention to detail stops with the battery. The battery is almost entirely made out of plastic and has sharp edges, which can cause certain damage to anything the battery falls into. Additionally, utilizing the driver to dump a cabinet into place can possibly be a dangerous game.

On the other hand, the PCC641 utilizes a 20V li-ion battery that gives users with hours of comfortable work time. Its battery comes with a 1.3 Ah capacity which is less than the normal capacity of 1.5 Ah of certain models. This implies that the battery pack can give a steady 1.3 amps of current for a single hour of operation time. But obviously, you don’t want to operate the unit straight for an hour for.

Another very advantageous feature of this unit is its built-in LED light that easily illuminates one’s jobsite. It’s ideal for working in poorly-lit areas or when working at night. Along with the unit’s light build, this is very ideal for working in those hard to reach spots like the insides of a cabinet or a shelf, or overhead spaces.


Deciding which of the two is better for your needs must ultimately be based on your budget and the demand of your current task. If you see that your job needs more safety measures while providing reliable power output, then can rely on PCC640B.

On the other hand, if you’re looking for something that comes with plenty of utilities, then the PCC641 would be the most ideal pick. Well, even if you pick the other way round, you shouldn’t really get worried because these two models are essentially the same.

And lastly, make sure that you have the right budget!

If you have any feedback or questions about this article please comment down below!

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