All units are sold round and unaltered but they are easily converted into crack chasing and cutting tools with four easy steps. This allows the users to set the depth of cut to their own preference rather than to a pre-determined depth as is the case with dedicated dustless crack chasers.

The Dustless Crack Chaser system can be used with a crack chasing wheel, a cutting wheel or a tuck pointing wheel.

Dust Muzzle/Crack Chaser on a 4 ½” Makita grinder

The Dustless Crack Chaser on a 4 ½” Makita grinder.

Dust Muzzle/Crack Chaser on a 7” Milwaukee grinder

The Dustless Crack Chaser on a 7” Milwaukee grinder.

Installation Instructions

Crack Chaser Marking

Step 1 

Determine how much of your blade or crack chasing wheel you want to show outside the Dustless Crack Chaser and make a mark. This will determine how deep your blade will cut.

Dust Muzzle Grinding

Dust Muzzle 60 Grit Abrasive

Step 2

Using either a stationary disc sander or a belt sander with 60 grit abrasive, grind off the nose to the marks you have made. When you have finished, there will be a flat spot.

Dust Muzzle Cover Plate

Step 3

Attach the unit to the grinder with the hose clamp as per the instructions. To make the most efficient dustless crack chaser, make sure the cover plate is trimmed to match the cut you have made. Snap the cover plate onto the unit and check that the blade or crack chaser is located in the center.

Dust Muzzle Cover

Step 4

Insert the step-down hose into the exhaust port and attach the large end of the hose to your vacuum hose.

You now have a dustless crack chaser and are ready to begin dustless cutting, dustless crack chasing and dustless tuck pointing.

The Dustless Crack Chaser will also act as a depth-of-cut guide. If it is trimmed to show ½” of blade, it will cut no deeper than ½”.

Dust Muzzle Crack Chasing Diagram



There are many excellent vacuums on the market. Your vacuum will have enough power to efficiently collect the dust if it has the following specifications.

  1. 2hp motor (12 amps continuous)
  2. 80” or more static lift
  3. 120 cfm (cubic feet per minute) airflow.

For the less expensive models of vacuum, it is essential that they have a disposable filter bag. This is the type of bag that collects the dust and is then disposed of like the systems that are typically used for residences.

Click here for a primer on vacuum essentials.

All Dust Collection Products dust collectors will work efficiently with an industrial vacuum (Nacecare 570 vacuum) that has at least 90” of static lift, 100 CFM of airflow and replaceable filter bags.