USING MANDRELS
The most common types of mandrels to use with this tool are the standard mandrel which is used with cut-off discs,
grinding wheels, emery wheels, and cut-off wheels. Screw mandrels are used with polishing wheels and polishing
drums. Drum mandrels are used with sanding drums.
To install:
• Unplug the rotary tool.
• Install the mandrel.
If using the standard mandrel:
• Press and hold the shaft lock button (1).
• Insert the slot end of the provided wrench into the slot on top of the
mandrel and unscrew.
• Remove mandrel screw and washer.
• Place desired accessory over mandrel shaft and align accessory hole
with mandrel hole.
• Insert mandrel screw with washer through the accessory and mandrel
shaft holes.
• NOTE: The mandrel washer should be placed between the mandrel screw and the accessory.
• Tighten using wrench.
If using the drum mandrel:
• Align appropriate sized sanding drum over mandrel and push down to completely cover drum
end of mandrel.
• Insert the slot end of the provided wrench into the slot on top of the mandrel and tighten the
screw on the drum mandrel head to expand the drum and securely hold the sanding drum in
place.
If using the screw mandrel:
• Align desired accessory hole with mandrel screw head.
• Screw accessory onto mandrel by twisting clockwise until secure.
Balancing Accessories
For precision work, it is important that all accessories be properly balanced. To balance an accessory, slightly
loosen the collet nut and give the accessory or collet a 1/4" turn. Retighten collet nut and run the rotary tool. You
should be able to judge by the sound and feel if the accessory is running in balance. Continue adjusting in this
fashion until the best balance is achieved. Replace accessories if they become damaged or unbalanced.
Speed Control
The rotary tool has a speed range of 10,000 - 32,000 RPM. To select
the right speed for each job, use a practice piece of material. Vary
speed to find the best speed for the accessory you are using and the
material. Use the indicator mark above the speed control dial (8) to set
the best speed for the job. The speed control dial (8) is numbered from
1 to 6. For example, a speed setting of 1 is approximately 10,000 RPM,
and a speed setting of 6 is approximately 32,000 RPM. Refer to the
Speed Dial Settings table to determine the proper speed based on the
material being worked and the type of accessory being used.
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