Impact wrenches are powered socket tools, powered by compressed air or electricity, they are one of the most common and useful tools in both the professional, and serious amateur workshop. Impact wrenches work by spinning a "hammer" to a high speed, and then suddenly engaging the socket, to deliver a sudden burst of torque. While electric (both mains and cordless) and hydraulic models are available, it is the air impact wrench which is by far the most popular.
Air impact wrenches are by far the most popular of all air tools, and if you're doing any serious amount of automotive work you'll definitely want one. Before you rush out and make a purchase however, there are a couple of considerations - power source, and socket size. Power source will depend on your budget, and what tools you already have. Socket size will depend on the type of work you're doing.
Drill Power Tools
As already mentioned, air impact wrenches are by far the most popular, but that doesn't mean they are your only choice. While they are relatively inexpensive, and offer good power, they do need a compressor as a power source. Unless you already have a suitable compressor that will add a considerable amount to the cost of the tool. If you don't have a suitable compressor, and are doing only occasional or light automotive work (such as in a home workshop) then an electric or cordless wrench is probably a better bet. These days the cordless wrenches are more than capable of light work, and are reasonably priced.
Your other main choice will be socket size. Most impact wrenches are available in sizes from 1/4" to 2" and even larger. For the home workshop a 1/2" is usually sufficient, with a 1" drive being more suitable if you're working on SUVs or light commercial vehicles. If you're working on big rigs then a 2" drive might be needed. Larger than 2" is normally only used for industrial purposes.
There is one other choice to me made, and that is style. The smallest wrenches are shaped like a screwdriver, but they are only capable of delivering low torque. Most 1/2" wrenches are of the "pistol grip" variety, shaped like an electric hand drill. As you move up to heavier duty tools you'll start to come across D and T grips which allow for a much firmer hold, and so much higher torque levels. The correct style for you will depend on the type of work you'll be doing, so take that into consideration when making a purchase.
Once you have decided on a power source, socket size and style it's time to hit the stores. Good quality wrenches are made by a number of suppliers such as Ingersol, Draper, Sealy, Makita and more. Shop around for a good deal, and be sure to check out the online stores as there are real bargains to be had!
Special Price!!! Bare-Tool Makita BHP452Z 18-Volt LXT Lithium-Ion Cordless 1/2-Inch Hammer Driver-Drill (Tool Only, No Battery)
Oct 31, 2011 13:11:25
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Bare-Tool Makita BHP452Z 18-Volt LXT Lithium-Ion Cordless 1/2-Inch Hammer Driver-Drill (Tool Only, No Battery) Feature
- Makita-built 4-pole motor delivers 450 in.lbs. of Max Torque, with a variable 2-speed all metal transmission (0-400 / 0-1,500 RPM) for a wide range of applications
- Compact, ergonomic design at only 8-3/4-Inch long; weighs just 4.2-Pound.
- Features such as a built-in L.E.D. light to illuminate the work area and a rugged tool belt clip
- Makita LXT lithium-ion battery and energy star rated 30-Minute rapid optimum charger produces 430-Percent total lifetime work with 2.5X more cycles
- 3-Year warranty on tool
Bare-Tool Makita BHP452Z 18-Volt LXT Lithium-Ion Cordless 1/2-Inch Hammer Driver-Drill (Tool Only, No Battery) Overview
Lightweight and compact with ergonomic soft grip design for superior screwdriving control; 4-pole motors provide high impact power. Build in job light maintains illumination 12-13 secs after trigger release. STANDARD EQUIPMENT: Bare Tool (Tool Only - No Batteries No Charger), 13mm Keyless Chuck. SPECFICATIONS: 16+1 Torque Settings; 2 Speed; Capacities: Masonry 13mm, Steel 13mm, Wood 38mm; No Load Speed:-Hi 0-400rpm;- Lo 0 -1,500rpm; Max. Fastening Torque: 50Nm; Net Weight: 1.8kg.Bare-Tool Makita BHP452Z 18-Volt LXT Lithium-Ion Cordless 1/2-Inch Hammer Driver-Drill (Tool Only, No Battery) Specifications
The Makita 18V LXT Lithium-Ion Cordless 1/2-Inch Hammer Driver-Drill delivers versatility and longer run time to the jobsite. The BHP452Z can be run as a driver-drill or a hammer driver-drill, allowing the user to carry just one tool on the job instead of two, replacing the standard driver-drill. | ||||
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The BHP452Z features a Makita-built four-pole motor that delivers 450 in.lbs. of Max Torque in a compact size. The BHP452Z has a Shift-Lock drive system sleeve that quickly shifts from "hammer drill" to "driver" mode. The two-speed all-metal transmission delivers 0-400 RPM in low speed and 0-1,500 RPM in high, covering a wide range of drilling and driving applications.
Ergonomic Design in a Compact Size
The BHP452Z weighs just 4.2 pounds (with battery, sold separately) with a more compact design at only 8-3/4 inches long and an ergonomic shape that fits like a glove for reduced operator fatigue. The BHP452Z is also equipped with a built in L.E.D. light that illuminates the work area for more efficient work.
Versatile Design for a Range of Applications
The BHP452Z's percussive hammer and driver-drill capabilities are a perfect fit for the pro that wants more features. This tool is perfect for a range of applications requiring percussive hammer-drilling, include fastening medium sized anchors, drilling into masonry, and even setting small sized anchors into concrete. The BHP452Z will handle a full range of drilling and driving tasks into wood and other materials, and can be utilized in many different areas such as HVAC, woodworking, plumbing, electrical, and more. It's ideal for any pro contractor who requires a best-in-class engineered cordless hammer driver-drill. The BHP452Z is just another example of Makita's commitment to innovative technology and best in class engineering.
About Makita's 18V LXT Lithium-Ion Cordless Tool Series
As one of the pioneers driving the cordless tool revolution, Makita changed the game with its breakthrough 18V LXT Lithium-Ion Cordless Series. Three years after its debut, Makita's LXT Series has grown from seven to over 35 tools, providing a wide range of cordless solutions for professional tradesmen. Makita also added 18V Compact Lithium-Ion for cordless power in a more compact size. Makita's 18V Lithium-Ion batteries and ENERGY STAR rated Optimum Charging System provide several benefits over old battery technology. When compared to traditional 18V Ni-Cd batteries, Makita's 18V Lithium-Ion batteries have 40% less weight, longer run time, and five-times lower self-discharge to keep cells active and ready to use at any time.
Makita's 18V Lithium-Ion battery delivers 2,000 cycles--2.5X more than Ni-Cd. In addition, built-in shock absorbing features help protect the battery, and sixteen firm-holding contact terminals deliver constant high power. During the charging process, a built-in memory chip in the battery communicates with the Optimum Charger for a more efficient charge, extending the battery life. Makita's Optimum Charger is also faster: it will charge an 18V LXT Lithium-Ion battery in just 30 minutes, and an 18V Compact Lithium-Ion battery in only 15 minutes. Makita also offers a Rapid Automotive Charger for 18V LXT and 18V Compact Lithium-Ion batteries that plugs into 12V DC sockets equipped in most automobiles and trucks for added mobility. Makita's growing line of LXT cordless tool solutions features a wide range of industrial-quality power tools, including driver-drills, impact drivers, impact wrenches, saws, grinders, screwguns, rotary hammers, and more. The LXT Series also offers a jobsite radio, rechargeable flashlights, and several different combo kits.
About Makita
Makita is a worldwide manufacturer of industrial quality power tools and offers a wide range of industrial accessories. Makita applies leading-edge innovation to engineer power tools that are more compact and energy efficient, yet deliver industrial strength power and results. Makita U.S.A., Inc. is located in La Mirada, California, and operates an extensive distribution network located throughout the U.S. For more information, please call 800/4-MAKITA (800/462-5482) or visit makitatools.com. Makita is Best in Class Engineering.
Warranty
Every Makita Lithium-Ion tool is backed by Makita's 3-Year Warranty that covers repair due to defects in materials or workmanship up to three years from the date of original purchase. Makita Lithium-Ion batteries and chargers have a limited 1-year warranty. Please see makitatools.com for complete details.
What's in the Box
Makita BHP452Z 18V LXT Lithium-Ion Cordless 1/2-Inch Hammer Driver-Drill (tool only).
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