5. Place the selected wheel on the spindle and align
it with the flange.
6. Position the flange nut over the spindle according
to wheel thickness.
Flange nut
position for
1/8" thick or less wheels
Flange nut
position for
1/4" thick or more wheels
7. Press in the spindle lock button while turning the
flange nut clockwise. Tighten securely.
8. To remove wheel, remove the battery pack and
reverse the procedure.
Sanding Disc Selection
Use sanding discs and accessories that are:
• correct size as written on tool's nameplate.
• rated at or above the RPM listed on the tool's
nameplate.
• correct accessory, wheel type and grit for the job.
Select the correct type of sanding disc for the job.
Generally, use 24 or 36 grit for heavy stock removal;
50, 60, or 80 grit for medium stock removal and 120
grit for finishing. Always begin with a coarse grit, us-
ing successively finer grits to obtain the desired finish.
• Aluminum Oxide: For fast cutting, general purpose
discs for most metal jobs. Best for cold-rolled steel,
stainless steel or metals requiring tough, fast cutting,
long lasting abrasives.
• Aluminum Zirconia Bi-Cut: Unique grit pattern is
arranged in clusters for faster stock removal and
cleaning. Ideal for removing paint from cars, boats,
etc. without clogging.
• Ceramic: Lasts up to 3 times longer than Aluminum
Oxide Discs. For general metal working. Ideal for
tough jobs.
Installing Backing Pad and Sanding Discs
1. WARNING! Remove battery to avoid starting
the tool.
2. Wipe the accessories, disc nut and spindle to
remove dust and debris. Inspect the parts for dam-
age. Replace if needed. Use only MILWAUKEE
mounting hardware designed for this tool.
3. Slip backing pad onto spindle with flat side away
from gear case.
4. Place sanding disc on backing pad and secure
Flange nut
Wheel
Flange
Spindle
5. Press in the spindle lock button while turning
6. To remove backing pad and sanding disc, remove
1/8"
Using the dust screen will increase the performance
1/4"
and extend the life of the tool.
1. WARNING! Remove battery to avoid starting the
2. To remove the dust screen, insert a flat screw-
3. To clean the dust screen, tap against a hard sur-
To learn more about the ONE-KEY™ functionality
for this tool, go to milwaukeetool.com/One-Key. To
download the ONE-KEY™ app, visit the App Store
or Google Play™ from your smart device.
7
assembly to spindle with disc nut.
flange nut clockwise. Tighten securely.
the battery pack and reverse the procedure.
Installing/Removing/Cleaning
the Dust Screen
tool. To attach the dust screen, snap the screen
over the tool's handle.
driver into the notch at the top of the dust screen
and pry away from the tool.
face, or blow clean with compressed air.
ONE-KEY™
ONE-KEY™ Indicator
Solid Blue
Wireless mode is active and
ready to be configured via the
ONE-KEY™ app.
Blinking Blue Tool is actively communicating with
the ONE-KEY™ app.
Blinking Red Tool is in security lockout and can
be unlocked by the owner via the
ONE-KEY™ app.
Disc nut
Sanding disc
Flange
Spindle
®