FREE SHIPPING to 45 states on orders over $149!

Malish Mal-Grit Xtra 46 Grit Rotary Brush

No reviews yet Write a Review
$135.50 - $459.00


Malish rotary scrubbing brushes


The Mal-Grit Xtra brush is the most aggressive scrubbing brush available. It features extra-heavy-duty nylon bristles impregnated with 46 grit silicone carbide. This brush is perfect for stripping old sealers or coatings off of all types of surfaces. It is also used for scrubbing heavily soiled concrete floors as well as cleaning horizontal natural stone. The Mal-Grit Xtra brush is one of the most useful and hardest working tools you will ever own.

Mal-Grit brushes are easy to use, require no special training and fit most all standard floor machines available at most rental stores.



  • Extra Heavy-Duty Scrubbing
  • Chemical Resistant
  • .070 Bristle Diameter
  • Most Aggressive 46 Grit
  • Available in 10"-21" Sizes
  • Custom Fit to Your Machine



Selecting The Right Tool

When ordering your new Mal-Grit Brush you will need to know several things about the machine you will be using the tool on.

1. What is the make and model number of the machine the tool will be used on?

Once you have this information, open the Machine Reference Guide above. The machine manufacturers are listed in alphabetical order. Once your brand of machine is found, continue down until you find the correct model. By reading across, you can then determine the correct clutch plate required for your specific machine. If possible, please include your machine make and model in the "Machine Make / Model" section of the order form. This is not required, but it is very helpful to our technicians when assembling your new tool.

Tool Clutch Plate ChartClutch Plate Chart

2. What diameter tool do you need?

In most cases, if you wish for the tool to fit up inside the housing of the machine, the tool block diameter should be ordered 2" smaller than the stated machine size. If you wish for your new tool to extend all the way to the edge of your machine housing, you will need a riser to allow the desired diameter tool to drop below the housing and extend outwards toward or past the edge of the machine housing. A riser is a just a simple spacer that is mounted between the clutch plate and tool. You will have the option of including a riser when you select your required clutch plate.

Either way is acceptable and there are pros and cons to each. A tool that fits up inside the machine housing, without a riser allows for a lower center of gravity and also makes the tool less vulnerable to damage. On the other hand, a riser allows for a larger tool that will cover more area and allows you to scrub all the way up against walls and other stationary objects. The most common configuration is to use a riser and order the tool the same size as the stated size of your machine. This puts the bristles even with or slightly past the edge of the machine housing. This allows you to scrub all the way up against walls and other objects, but the choice is up to you to decide which setup is best for your application.

Diamabrush Components Diamabrush Tool Dimensions

3. What center hole diameter is required?

Mal-Grit Brushes are available with a variety of different diameter center holes, as well as with no hole at all. Once again, the specifications for center hole sizes can be found in the Machine Reference Guide. The majority of machines on the market today require a standard 5" diameter center hole for mounting of the standard NP-9200 clutch plate. If you need a different, or specific size center hole, or desire a solid tool with no center hole, be sure to include that information in the "Additional Tool Notes" section of the order form.


Not sure which tool you need?
Just give us a call with the make and model of your machine, and we'll be glad to help!


Got Questions?

Check out the "Help Center", send us an email or just give us a call and we'll be glad to help you with your order!

Extra Information


Additional Resources

Shop by Brand

Spraying Systems Co