PORTER-CABLE PCCK647LB 20V MAX Brushless Cordless Impact Driver Review

Porter-Cable has been providing quality power tools for more than 100 years. They offer high-quality products to aid us in our everyday woodwork and carpentry needs. One such product is the PCCK647LB cordless impact driver. You are not just getting a powerful drill but a complete kit at that.

PORTER-CABLE PCCK647LB 20V MAX Brushless Cordless Impact Driver



  • Has a brushless motor
  • Delivers 2,700 RPM
  • Provides 1,400 in. lbs. of torque
  • Has a ¼-inch quick change hex
  • Boasts 3,100 IPM
  • Has a weight of 3.2 lbs.
  • Uses a ¼-inch chuck size


  • Not recommended for short bits
  • Can get a little warm when used continuously

Our Opinion

Lightweight but Powerful Tool

PORTER-CABLE PCCK647LB 20V MAX Brushless Cordless Impact DriverThis 3.2 lbs. power tool can deliver 1,400 inches per pound of maximum torque and up to 2,700 revolutions per minute. This is definitely a tool that is designed for heavier applications. The company boasts that this item has 20% more power and 20% improved bit retention.

Because it is lightweight and compact with dimensions of 3.7 x 11.4 x 9.5 inches, this is the perfect tool for overhead applications. Tight, cramped spaces have never been easy to conquer. Usually, lighter tools run the risk of not having that much power. Therefore, when a demanding project is trapped within an enclosed space, you are left with no choice but to pry that area open to give way for stronger impact drivers. The PCCK647LB remedies that.

High Performing Battery with a Brushless Motor

PORTER-CABLE PCCK647LB 20V MAX Brushless Cordless Impact DriverThis particular kit includes two 20V MAX lithium ion 1.5 Ah batteries. These are part of Porter-Cable’s 20V MAX battery system, meaning they can be used with other tools under the company’s 20V line. Whether you are a patron of the brand or merely beginning your collection, this information would prove to be quite helpful. Oftentimes, accessories could cost as much as the tool itself. It is good to know that, with this model, your purchase gives you more versatility—at least on the battery side.

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This impact driver also features a brushless motor that offers a 50% more runtime. This is because brushless motors do not have brushes and commutators, making the magnets and armature communicate directly with the windings. This direct communication allows the tool to adjust accordingly to how much power it should produce depending on the kind of surface you are using it on.

The physical contact of the spinning commutator and brushes (for models that still use them) cause greater energy loss whenever the tool is in use. That is why tools that opt for brushless motors instead are more energy efficient. If you are on the market for a new impact driver, this feature should be held in the highest consideration.

Other Features

PORTER-CABLE PCCK647LB 20V MAX Brushless Cordless Impact DriverThe ¼-inch chuck is easy enough to use. You only need to push or pull on the bit to put in or remove it. The tool can also hold bits of various lengths, but because of the power it delivers, you need to be cautious when using shorter bits.

The PCCK647LB impact driver has a built-in LED work light so you can have extra illumination whenever you are working in darker surfaces. It is in many ways helpful. Not all spaces have ample lighting even in broad daylight. Save yourself the trouble of handling an added flashlight and buy this tool instead.

It also has a battery gauge on the base, so you know when your battery power is getting low. This feature is not readily available in other brands or models, so better opt for one that has it. If you have a number of batteries at hand, you will be able to check the remaining juice of each instead of just popping everything back on the charger. This will help you avoid any unwanted overloading or overcharging that most users commit.

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Three-Year Limited Warranty

PORTER-CABLE PCCK647LB 20V MAX Brushless Cordless Impact DriverWarranties are every customer’s assurance that they are buying quality products that give them the best value for their money. Porter-Cable offers a three-year limited warranty for their power tools that have become defective because of faulty materials and workmanship. If your tools have become defective because of normal wear and tear or abuse, then the company is not liable for the damage caused.

Within three years from the date of purchase, the company will repair your defective items free of charge as long as the defectiveness is within their terms. You are also guaranteed one-year free service which means that anytime within a year from the date of purchase, the company will maintain your tool and replace parts that have normally worn out.

But if you are not completely satisfied with the tool’s performance, you can return it and get your money back within 90 days from when you bought it. You will be fully refunded, no questions asked.

Comparison with Porter-Cable PC18ID

The Porter-Cable PC18ID is also a powerful tool. It can deliver 1,600 in. lbs. of torque but does not deliver that unwanted kickback usually associated with stronger models. It features a cold-forged impact bock which makes it sturdy and reliable. This tool uses 18V batteries which means it holds less energy capacity compared to the 20V batteries of the PCCK647LB.

The PCCK647LB is brushless while the PC18ID is not, which means that the high performing motor drains a lot faster. This is not only because of the lesser battery capacity but also because of the energy lost when the commutator and brushes inside the motor spin and make contact.



The Porter-Cable PCCK647LB is ideal for contractors and serious DIYers on a budget. You can use this tool for heavier applications around the house and then some. The batteries have a high-energy capacity and its brushless motor helps increase its runtime.

This compact and lightweight tool will drill through even metal provided that you have the right bits. It can also loosen tight nuts and bolts easily and quickly without much effort on your part. Without a shadow of a doubt, this tool is a handy item that should be in your toolbox.