Cordless Angle Grinder: Choosing the Correct Blade For an Angle Grinder

The angle grinder is a very useful tool when it comes to DIY in the house. It can be used for cutting, polishing and sanding various materials, but it is typically used on metal or stone.

Cordless Angle Grinder

There are many different types of blade available for this tool, so how do you choose the correct one for the task at hand?

Cordless Angle Grinder

The types of blade available are designed to be used on different materials:

Dry cutting disc: These are generally useful for cutting through bricks, stone and similar materials. The have smooth edge with indents going back to the centre of the disk every centimeter or so - these are for thermal expansion of the blade. They can also be used for rough cutting of tile in order to get the basic shape you require. Dry discs can easily chip or mark tiles, if a precise smooth cut is required use a wet cutting blade. Wet cutting disc: Normally used if a smooth, straight line is required. The blade edge is smooth all the way around the circumference, and this works best on ceramic tile, stone and marble. You need a wet saw to use one of these discs, but the end result is well worth it. Whatever you do, do not attempt to use an dry angle grinder with one hand while pouring water over the blade! I have seen many unfortunate 'accidents' happen to workers that used this method - instead, buy a proper wet angle grinder. Dry/ Wet cutting disc: A hybrid blade that is similar to the wet cutting disc, but is more suited to being used on larger pieces of masonry. The edges of this blade feature small channels that aid cutting. Again, a wet angle grinder is required.

Choosing the Correct Blade For an Angle Grinder

Cordless Angle Grinder

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Makita BGA452 18-Volt LXT Lithium-Ion Cordless 4-1/2-Inch Cut-Off/Angle Grinder Kit Feature

Makita-built motor delivers 10,000 RPM for 50% faster grinding
Compact, ergonomic design at 12-1/2-inches long; weighs only 5.3 lbs. for reduced operator fatigue
A built-in L.E.D. protection circuit with over-torque control protects the motor
Makita LXT Lithium-Ion battery and Energy Star rated 30-Minute Rapid Optimum Charger produces 430% total lifetime work with 2.5X more cycles
3-year warranty on tool; 1-year warranty on batteries and charger.

Makita BGA452 18-Volt LXT Lithium-Ion Cordless 4-1/2-Inch Cut-Off/Angle Grinder Kit Overview

Lightweight, compact design has ergonomic shape that fits like a glove with even pressure and easy control. LXT Lithium-Ion provides longer run time. 45-minute optimum charger has built in fan to cool the battery. Charger uses Active 3 control for current control, thermal control and voltage control. Built-in electronic control circuit with L.E.D. warning lights for overload protection. Slide switch with lock-on. STANDARD EQUIPMENT: 2 No.194205-3 LXT Lithium-Ion 3.0Ah batteries, No.DC18SC 45-minute optimum charger, No.135103-2 cut-off wheel guard, No.125267-0 grinding wheel, No.7414248-1 cut-off wheel, No.824767-4 tool case. SPECIFICATIONS: 18-VDC 3.0Ah, 4-1/2" grinding wheel, 4-1/2" cut-of wheel, 4-1/2" sanding disc, 3-1/2" w

Makita BGA452 18-Volt LXT Lithium-Ion Cordless 4-1/2-Inch Cut-Off/Angle Grinder Kit Specifications

Makita's 18V LXT Lithium-Ion Cordless 4-1/2-inch Cut-Off/Angle Grinder delivers 10,000 RPM of compact grinding power to the jobsite. The BGA452 is engineered to grind, cut, and sand a wide range of materials including tile, concrete, pipe, conduit, and more.

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BGA452 Features

SPEED - 50% faster grinding/cutting with 10,000 RPM; 5/8" - 11 arbor

CONTROL - Built-in control circuit with L.E.D. warning lights to protect the Makita motor

COMFORT - Only 5.3 lbs. with ergonomic grip

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

INCLUDES - (2) 18V LXT Lithium-Ion batteries, rapid charger, (2) guards, (2) wheels and case

Tool Specifications

Grinding/Cut-off wheel	4-1/2"
Wire cup brush	3-1/2"
No load speed	10,000 RPM
Battery	18V LXT Lithium-Ion
Spindle thread	5/8"-11 UNC
Overall length	12-1/2"
Net weight	5.3 lbs. (w/battery)

Makita-Built Motor Engineered for Versatile Power
The BGA452 features a Makita-built four-pole maximum torque motor that delivers 10,000 RPM, as well as an all-metal helical gear transmission which is a longer lasting and delivers a more efficient transmission of energy when compared to angled gears. The BGA452 also has a built-in electronic control circuit with L.E.D. warning lights for overload protection, and an electronic current limiter that automatically shuts off the current when the motor continues to be overloaded. This feature protects the motor for longer life.

Ergonomic Design in a Compact Size
The BGA452 weighs just 5.3 pounds with a more compact design at only 12-1/2 inches long. The ergonomic shape fits like a glove with even pressure and even control, and the built-in L.E.D. light illuminates the work surface for more efficient work.

Versatile Design for a Range of Applications
The BGA452 will grind, cut, and sand through a range of materials including tile, concrete, all-thread, Unistrut, pipe, channel iron, copper pipe, tubing, and more. It is ideal for tile setters, masons, welders, electricians, pipe fitters, sprinkler installers, HVAC, plumbers and any general contractor seeking a best-in-class engineered cordless cut-off/angle grinder. The BGA452 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.

What's in the Box
Makita BGA452 18V LXT Lithium-Ion Cordless 4-1/2-inch Cut-Off/Angle Grinder, two 18V LXT Lithium-Ion batteries, 30-Minute Rapid Optimum Charger, Cut-off wheel guard, Grinding wheel guard, Grinding wheel, Cut-off wheel, and tool case.

Other Makita Lithium-Ion Series