Concrete grinders are tools that make use of circular discs, to even out a concrete surface and for giving it a smooth texture. These serve the purpose best, when you need to clean and area between 1/8 inches and 1/16 inches.

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In addition to smoothening of a surface, concrete grinders also help in removing paints, rusts, graffiti and for preparing the surface for coating. While concrete grinders are used for clearing a larger surface, hand held concrete grinders are used to clean smaller areas such as corners and areas that are beyond the reach of a large grinder.

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Based on the requirements, the grinder may be equipped with varied discs such as brushes and segments of diamond material.

Generally, these grinders either use gases such as propane for fuel. A few models do run on electricity, but these are suitable only for a small project. For bigger projects, grinders using gases are used.

Points to be remembered before buying a concrete grinder:

· The weight of the grinder: The weight of the grinders would be around 100lbs to 300lbs. More weight could result in better finish and would require more fuel. Hand held grinders are light weight and may weigh as little as 5lbs to provide easy handling to the user.

· The horse power in the grinders may vary from 2hp to 15 hp. If you are going to cover a larger area such as airport, you would need a grinder with greater horse power. For house hold projects, you will need a smaller horse power.

· For larger projects, you will require dual grinders, so that you can minimize the time required to complete the project and thereby, save cost.

· Some grinders are equipped with better features for dust collection. This is a useful feature for the operator, as it will protect the operator from inhaling dust and debris.

· Wet grinders include a tank, which can store up to 2 gallons of water.

· You should be able to alter the brushes with minimum hassle.

Once you have settled on the type of grinder you need, you can decide on whether you want to purchase the grinder out rightly. Instead of purchasing a grinder, you can opt for getting the grinder on lease or you can even buy a used grinder.

You will definitely save on cost with used or leased grinders, but it would be better to buy a grinder in case you are going to need the grinder for a long term project.

Concrete Grinder

Makita Power Tool

Black Friday Bare-Tool Makita BTW450Z High Torque Impact Wrench (Tool Only, No Battery) 2011 Deals

Nov 25, 2011 14:32:47

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>> Click here to update Black Friday prices for Bare-Tool Makita BTW450Z High Torque Impact Wrench (Tool Only, No Battery) <<

Black Friday Bare-Tool Makita BTW450Z High Torque Impact Wrench (Tool Only, No Battery) Feature

Makita-built motor delivers 325 ft.lbs. of max torque, with 1,600 RPM and 2,200 IPM
Compact, ergonomic design, 10-1/2-inches long, 7.5-pounds for reduced operator fatigue
Large rocker switch, built-in LED light, large tool hook, job-site tested shock absorbent handle
Makita LXT lithium-ion battery, Energy Star rated 30-minute rapid optimum charger
Tool only (battery not included), 3-year warranty

Black Friday Bare-Tool Makita BTW450Z High Torque Impact Wrench (Tool Only, No Battery) Overview

Makita's 18V LXT Lithium-Ion Cordless 1/2-Inch Impact Wrench delivers high-torque impact power with a 1/2-Inch square drive that will fit impact-rated socket sets. The versatile BTW450Z packs plenty of torque for a wide range of fastening and loosening tasks, and is a powerful and convenient substitute for air powered and AC wrenches.

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BTW450Z Features

POWER - Makita-built motor delivers 325 ft.lbs. of Max Torque with 2,200 IPM at 1,600 RPM

CONVENIENCE - Rocker switch & built-in light

PERFORMANCE - LXT Li-Ion batteries charge in 30 minutes, run longer and deliver 2.5X more cycles

DURABILITY - Rugged tool housing and battery connection increase overall tool life

Battery and charger not included

Tool Specifications

Square drive	1/2"
No load speed	1,600 RPM
Impacts per minute	2,200 IPM
Maximum torque	325 ft.lbs.
Battery	18V LXT Lithium-Ion
Overall length	10-1/2"
Net weight	7.5 lbs. (w/battery)

Makita-Built Motor Engineered for Versatile Power
The BTW450Z features a Makita-built high torque motor that delivers 325 ft.lbs. of Max Torque, 1,600 RPMs, and 2,200 impacts per minute for a wide range of fastening tasks, including removing transmission bolts and lug nuts. Makita's proprietary hammer and anvil impact mechanism are manufactured using the best raw materials with the highest quality steel and unique heat hardening process for maximum fastening and driving power. The unique rubber joint shock absorbent handle helps protect the battery housing from vibration.

Ergonomic Design in a Compact Size
The BTW450Z weighs just 7.5 pounds (with battery, sold separately) and is 10-1/2 inches long with an ergonomic shape that fits like a glove for reduced operator fatigue. The BTW450Z is equipped with a large rocker switch for easier tool use -- even with gloves -- and a 1/2-inch square drive with detent pin is designed for quick release. A built-in L.E.D. light illuminates the work surface for more efficient work.

Versatile Design for a Range of Applications
The BTW450Z is a cordless option to air powered and AC impact wrenches. It is engineered for a range of fastening and loosening tasks and is perfect for steel beam construction, I-beam construction, utility pole, telephone and cell phone pole installation, overhead door installation, mudsills, automotive work, conveyor systems, HVAC, fire sprinklers, oil fields and refineries, anchors, tilt-up construction, and more. It is ideal for steel contractors, commercial contractors, automotive line assemblymen, automobile mechanics, residential contractors, HVAC contractors, and any pro tradesman requiring a best in class engineered impact wrench. The BTW450Z 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.

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 produce tools that are stronger, lighter, more powerful and easier to use. Makita USA, 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 the website at 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.