Manual Dremel 400seriesXPR (page 10 of 72) (English, French, Spanish)

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OPERATION (CONTINUED)

Operating Speeds

To achieve the best results when working

with different materials, set the variable

speed control to suit the job. To select the

right speed for the accessory in use, practice

with scrap material first.

NOTE: Speed is affected by voltage changes. A

reduced incoming voltage will slow the RPM of the

tool, especially at the lowest setting. If your tool

appears to be running slowly, increase the speed

setting accordingly. The tool may not start at the

lowest switch setting in areas where outlet voltage

is less than 120 volts. Simply move the speed set-

ting to a higher position to begin operation.

The 400 Series XPR Rotary Tool switch set-

tings are marked on the speed control dial.

Refer to the Speed Settings chart on pages

11 thru 13 to help determine the proper

speed for the material being worked on and

the accessory to use.

Most jobs can be accomplished using the

tool at the highest setting. However, certain

materials (some plastics and metals) can be

damaged by high-speed generated heat and

should be worked on at relatively slow

speeds.

Slow speed operation (15,000 RPM or less)

is usually best for polishing operations

employing the felt polishing accessories, del-

icate wood carving and fragile model parts.

All brushing applications require lower

speeds to avoid wire discharge from the

holder. Let the performance of the tool do the

work for you when using lower speed set-

tings.

Higher speeds are better for drilling, carving,

cutting, routing, shaping, cutting dadoes or

rabbets in wood. Hardwoods, metals and

glass require high speed operation also.

The settings for approximate RPM’s are:

Switch Setting Speed Range RPM

2 5,000-8,000

4 9,000-11,000

6 12,000-17,000

8 18,000-24,000

10 25,000-35,000

Some guidelines regarding tool speed:

• There is no accessory for the Dremel

Rotary tool that will drill or cut glass.

• Plastic and other materials that melt at low

temperatures should be cut at low speeds.

• Polishing, buffing and cleaning with a wire

brush must be done at speeds not greater

than 15,000 RPM to prevent damage to the

brush and your material.

• Wood should be cut at high speed.

• Iron or steel should be cut at high speed.

• If a high speed steel cutter starts to vibrate,

it usually indicates that it is running too

slow.

• Aluminum, copper alloys, lead alloys, zinc

alloys and tin may be cut at various

speeds, depending on the type of cutting

being done. Use a paraffin (not water) or

other suitable lubricant on the cutter to pre-

vent the cut material from adhering to the

cutter teeth.

NOTE: Increasing pressure on the tool is not

the answer when it is not performing proper-

ly. Try a different accessory or speed setting

to achieve the desired result. Please refer to

the following Speed Setting charts or simply

contact Dremel Consumer Service at:

1-800-437-3635

or at www.Dremel.com.

Set the Speed Control to the desired setting.

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Dremel 400seriesXPR Manual

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