Craftsman 572.610520, 572.610530, 572.610720 ], 1 I

TheSettingsforApproximateRevolutionsPerMinuteRotaryTooiVariableSpeedModel572610530

SwitchSetting Speed Range

1 4,500- 8,000 RPM

2 9,000-11,000 RPM

3 12,000- t7,000 RPM

4 18,000 - 24,000 RPM

5 25,000 - 30,000 RPM

NOTE: Speed is affected by voltage

changes. A reduced incoming voltage will

slow the RPMof thetoot, especiallyat the

lowest setting, If your tool appears to be

running slowly increase the speed setting

accordingly°

The point to remember is this:You can do the

great majorily of work with the single speed at

its regular speed of 28,000 RPM But for

certain materials and types of work, you need

slower speeds -- which is the reason the

variable speed models were developed

To aid you in determining the optimum

operational speed for different materials and

different accessories, we have constructed a

series of tables that appear on page 5 By

referring tothese tables,you can discover the

recommended speeds for each type of

accessory Look these tables over and

become familiar with them.

Ultimately, the best way to determine the

correct speed for work on any matedal is to

practice fora fewminutes on a piece of scrap,

even after referring to the chart You can

quickly learn that a slower or faster speed is

more effectivejust by observing what happens

as you make a pass or two atdifferent speeds.

When working wilh plastic, forexample, start

at aslow rate of speed and increase the speed

untit you observe that the plastic is melting at

the point of contact. Then back the speed off

slightly toget the optimum working speed

Somerules ofthumb in regardto speed:

1 Plastic and materials that melt at low

temperatures should be cutat low speeds.

2, Polishing, buffing and cleaning with a wire

brush should be done at speeds below

15,000 RPM to prevent damage to the

brush

3 Soft wood shoutd be cut at high speed

4 iron or steel should be cut at top speed il

using tungsten carbide accessory, but at

slower speeds if using high speed steel

cutters If a high speed steel cutter starts to

chatter -- this normally means it is running

too slow

5 Aluminum, copper aIfoys, lead alloys, zinc

alloys and tin may be cut at any speed,

depending on the type of cutting being

done Use paraffin or other suitable

lubricant on the cutter to prevent thecut

material from adhering to the cutter teeth

Increasing the pressure on the too_ is not the

answer when it is not cutting as you thinkit

should Perhaps you should be using a

differentcutter, and perhapsan adjustment in

speedwould solve the problem But leaning on

thetool seldom helps

SPEED SETTINGS .Spee,

,t Dope

STOCK ISOFT HARD

NUMBER JWOOD WOOD

53101

...... 25014,53102

25012,53070

I 53103,25011

...............................2501625008

53074,53075 } 5

53075 5•

Ifor light cuts, caution burning on deep grooves.

_din9 on cutting direction, relative to £1rain.

LAMINATES1STEELpLASTIC ALUMINUM' ]SHELL] l CERAMIC 1GLASSBRASSETC. STONE

25034 [

25026 I 5 l

25024, 53088

53094

53107,53108,53!09,

53111,53095,53096

53090,53091

53092

53078 [

25053

25049,25046

25057 ,,

25058

53079,530802506325062I

63071,52072,53104 I

53073,53105

]

J

HIGH SPEED CUTTERS

3 2

2 .............................I:2 .

5 2 3 5

3 .............. 2 2 2

5 2 ............................1-2 1-2

2 1-2 2 2

SMALLENGRAWNGCUTTERS5 4 f 4 i 3

5, 3" I 4 2

RUBBER POLISHING POINT

I I 2 I, 1

CUTTING ACCESSORIES--SEE WARNtNG PAGE 7

5 6 iHIGHSPEEDROUTERBITS

ALUMINUM OXIDE GRINDING STONES

1 j 3

:i 1-2

111-2

t t 11 t I

SILICON CARBIDE GRINDING STONES

1 I I-2

TUNGSTEN CARBIDE CUTTERS

51 2 I 3

t

1-3

1-1

!-1

1-1

! 1-1

I ttLIJiIbf

]

1-2

t 1

J

Page 5