| DEWALT Cordless Impact Wrench DC840KA Heavy-Duty 1/2" (13mm) 12V or 12 volt Impact Wrench Kit |
| DEWALT Cordless Impact Driver DC845KA Heavy-Duty 1/4" (6.4mm) 12V or 12 volt Hex Impact Driver Kit |
| DEWALT Cordless Impact Wrenchs DW059K Heavy-Duty 1/2" (13mm) 18V or 18 volt Cordless High Torque Impact Wrench Kit, 18V or 18 volt Impact Wrench |
| DEWALT Cordless Impact Wrench DC800KL Heavy-Duty 1/2" (13mm) 36V or 36 volt - Cordless High Torque Impact Wrench Kit, 36V High Battery Power Impact Wrench |
| DEWALT Cordless Screw Driver DW920K Heavy-Duty 1/4" (6mm) 7.2V or 7.2 volt Cordless Two-Position Screwdriver Kit |
| DEWALT Cordless Screw Driver DC668KA Heavy-Duty XRP™ 18V or 18 vold Light Gauge Steel Framing Screwdriver, 18V DryWall Screw Driver, 18 Volt Screw Drivers |
| DEWALT Cordless ScrewDriver DC520KA 18V or 18 volt ScrewDrivers, Portable Screw Driver Battery Powered Driver Battery Powered |
| DEWALT Cordless Screw Driver DW979K Heavy-Duty 12V or 12 volt Cordless Drywall / Deck Screwdriver Kit, ScrewDriver Drill for Drywall, 12V Impact ScrewDrvier |
| DEWALT Cordless Screw Driver DW969K Heavy-Duty 14.4V or 14.4 volt Cordless Light Gauge Steel Framing Screwdriver Kit, 14.4V Power ScrewDriver w/ Battery, Impact Screw Driver |
| DEWALT Cordless Impact Wrench DC830KA Heavy-Duty 1/2" (13mm) 14.4V or 14.4 volt Impact Wrench Kit |
| DEWALT Cordless Impact Driver DC835KA Heavy-Duty 1/4" (6.4mm) 14.4V or 14.4 volt Impact Driver Kit |
| DEWALT Cordless Impact Wrenchs DC841KA Heavy-Duty 3/8" (9.5mm) 12V or 12 volt Impact Wrench Kit |
| DEWALT Cordless ScrewDriver DW968K Heavy-Duty 12V or 12 volt Cordless Light Gauge Steel Framing Screwdriver Kit, 12V Impact Cordless Screw Driver, ScrewDrivers |
| DEWALT Cordless Impact Wrench DC820KA Heavy-Duty 1/2" (13mm) 18V or 18 Volt Impact Wrench Kit |
| DEWALT Cordless Impact Drivers DC827KL Heavy-Duty 1/4" (6.4mm) 18V or 18 volt Impact Driver Kit with NANO Technology |
| DEWALT Cordless Impact Driver DC825KA Heavy-Duty 1/4" (6.4mm) 18V or 18 volt Impact Driver Kit |
| DEWALT Cordless Impact Drivers DC855KA Heavy-Duty 1/4" (6.4mm) 9.6V or 9.6 volt Impact Driver Kit |
| DEWALT Cordless Impact Wrench DC821KA Heavy-Duty 18V or 18 volt 1/2" High Performance Impact Wrench Kit |
| DEWALT Cordless Impact Wrenchs DC810KL Heavy-Duty 28V or 28 volt 1/2" High Performance Impact Wrench Kit |
| DEWALT Cordless Driver DW970 Heavy-Duty 12V or 12 volt Driver with 1/4" Hex-Drive Chuck - DW970 |
| Press Release DEWALT INTRODUCES HEAVY-DUTY CORDLESS IMPACT DRIVERS AND WRENCHES WITH MORE POWER IN A SMALLER PACKAGE July 2007 – DEWALT, a leading manufacturer of industrial power tools, introduced its new line of heavy-duty impact drivers and wrenches, providing users with a smaller, lighter, more powerful tool to meet the jobsite needs of professional contractors. The line of impact drivers and wrenches includes 18V (DC825KA/DC820KA), 14.4V (DC835KA/DC830KA), 12V (DC845KA/DC840KA, DC841), and 9.6V (DC855KA). The impact drivers and wrenches are ideal for steel framers, commercial electricians, cabinet installers, deck builders, HVAC and wet and dry mechanical contractors who need a compact tool for self-drilling metal screws, setting wood and lag screws, spade bit drilling (up to 1”), and a wide range of nut/bolt combinations. The impact drivers and wrenches are equipped with a high-speed DEWALT-designed frameless motor with replaceable brushes, providing users with high performance, durability and serviceability. The frameless motor design benefits from increased airflow and provides more power, enabling users to complete a wide range of fastening applications. Additionally, DEWALT reduced the overall length and footprint of each model, creating a compact, lightweight tool that allows users to access tighter areas and easily complete overhead applications. DEWALT built the new impact tools with an improved variable speed reversing switch, providing users with more control for both setting and removing fasteners. A textured anti-slip comfort grip handle design delivers increased comfort for extended use. The bright LED work light offers additional visibility in dark, confined spaces. Additionally, for increased user flexibility and productivity, DEWALT designed the impact drivers and wrenches with an OEM accessory recess that provides compatibility with many popular after-market components. The 18V models are powered by the DEWALT 18V cordless system, which provides users with superior cycle life and runtime. The entire DEWALT 18V system is designed for maximum durability and versatility, allowing users to operate 38 tools off of one battery platform. About DEWALT (www.dewalt.com) DEWALT is a leading manufacturer of industrial power tools with more than 300 power tool and equipment products as well as 800 power tool accessories, including corded and cordless drills, saws, hammers, grinders, routers, planers, plate joiners, sanders, lasers, generators, compressors and nailers, as well as saw blades, metal and masonry drill bits, abrasives, screw driving accessories and more. DEWALT tools can be found wherever tools are sold, nationally and internationally. With over 1,000 factory owned and authorized locations DEWALT has one of the most extensive service and repair networks in North America. For additional news and editorial inquiries contact Warschawski Public Relations , 410-367-2700 Content is property of www.Dewalt.com ( Dewalt Power Tools and Accessories) |
| Cordless Feel the Impact – Cordless Impact Tools Gaining Popularity with the Pros By Don Geary, Freelance Tool Tester and Magazine Writer Feel the Impact – Cordless Impact Tools Gaining Popularity with the Pros Compiled by Don Geary, Tool Tester and Magazine Writer Cordless impact drivers and wrenches are undoubtedly the handiest and most versatile power tools for driving a wide variety of fasteners during almost any construction project. They’re compact, lightweight, and compared to a conventional cordless drill they can deliver an amazing amount of speed and power with better control. After trying these tools, you’ll wonder why you never picked one up before. Cordless Impact Drivers vs. Cordless Drills – How Do They Compare? Although they look like a smaller replica, don’t confuse a cordless impact driver with a standard cordless drill or hammerdrill. The biggest difference is inside. Unlike a cordless drill - which creates continuous in-line torque – a cordless impact driver uses an internal spring-loaded pulsating cam and gear mechanism to create rotational torque. In simple terms, the effect is similar to that of a hammer wrapping on a wrench to loosen a stubborn lug nut, only faster. Cordless impact drivers work like a typical cordless drill until greater torque is needed, at which point the spring and cam mechanism kicks in, with up to 3,000 blows-per-minute (bpm) to increase the torque by almost triple the amount of a cordless drill (e.g. DeWALT’s12-volt cordless impact driver develops 1,000 in/lbs. of maximum torque compared to 350 for a 12-volt drill). And, unlike a hammerdrill, the bit doesn’t “hammer” in and out while rotating – it maintains contact with the fastener even as the hammering effect occurs inside the tool. Another significant difference is torque delivery. With a cordless drill, the user must literally hold on to counter the tool’s tendency to spin out of his hands. However, with a cordless impact driver the torque is converted directly to the fastener. You can easily hold the tool using one hand without noticing any reactionary torque. This means you can drive fasteners all day long without the arm fatigue or wrist kickback normally associated with a conventional drill/driver. Because of their added speed (2,400 rpm vs. 2,000 for cordless drills) cordless impact drivers are excellent at driving Tapcon screws into concrete for electrical service panels, hex-head sheet metal screws for installing duct work and metal roofing, drywall screws, and deck screws. In addition, a cordless impact driver fitted with an impact socket adaptor can drive eight-inch lag bolts into pressure treated lumber with ease. All of these capabilities make impact drivers a logical choice for electricians, deck builders, light gauge steel framers, cabinet installers, HVAC installers, sprinkler fitters, and other tradespeople. Another benefit is size. Cordless impact tools are compact – the models from DeWALT are about 35% the size of a comparable drill/driver. This makes them ideal for getting into tight places for various tasks, such as the installation of cabinets, duct work or overhead fastening on fire sprinkler systems. The weight of a cordless impact driver is about 3.5 pounds vs. 8.7 pounds for a high-voltage drill/driver - another advantage. The lighter tool is easier to handle if you have hundreds of fasteners to drive in a day, or if you’re doing overhead work. Cordless impact tools are not as quiet as conventional drill/drivers. The internal mechanism in these tools results in a rapid chatter sound when torque is applied to the fastener. Tough fasteners, however, will be driven significantly quicker. And, as a rule, the battery in a cordless impact driver will last longer between charges, partly because an equal amount of energy is pulled from the battery regardless of the torque required to drive the fastener. With a cordless drill, the higher the torque required, the greater the drain on the battery. Using a cordless impact driver requires a slightly different technique compared to using a standard drill/driver. Once the fastener starts into the material a light grip is all that’s required to drive it home. Unlike a drill/driver, on which the user must bear down to force the fastener into the material, an impact driver will do most of the work without stripping out the fastener head. Cordless impact drivers have a quick release chuck that enables split second bit changing. They use a 1/4 inch hex-drive bit system that will accept many accessories, including screwdriver bits, impact socket adaptors for driving lag bolts, and nut drivers for self tapping metal screws. They can also be used for drilling with 1/4 inch hex-shank twist bits in wood or metal drilling, and even spade bits for holes up to about 7/8 inches in diameter for plumbing and electrical wiring. I have found that an impact driver will actually drill holes much faster than a standard drill/driver in most types of material when fitted with the right drill bit. Cordless Impact Wrenches The basic difference between cordless impact drivers and cordless impact wrenches is the chuck configuration. Impact drivers have a chuck which accepts 1/4 inch hex-shank bits for screwdriving, drilling, and nut driving. A cordless impact wrench uses a 3/8 inch or a 1/2 inch square anvil primarily for driving impact sockets. In addition, the wrenches develop more torque. Today’s cordless impact wrenches, like the ones from DeWALT, now have enough power to rival many corded electric wrenches, a big plus when you’re up on a lift away from an outlet. The type of work you’re doing will dictate which category to choose – driver or wrench. For example, if most of your work involves driving self tapping sheet metal screws or deck screws, an impact driver would be right for you. If most of your work involves driving large lag bolts or bolting pipe couplings, a dedicated cordless impact wrench would be a better choice. Although a cordless impact driver can be fitted with a socket adaptor, the larger square shaft of the impact wrench will prove more durable for heavy duty applications. # # # Don Geary has been a free lance writer/photographer for almost 30 years and has written extensively about power tools, remodeling, contracting and a variety of outdoor topics. Don is also a book author with almost 30 titles to his credit on a variety of topics. Don writes a regular tool column for two magazines and also contributes to many of the popular magazines. He lives with his wife in Baker, Nevada. |
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