Milwaukee 4272-59 Operator'S Manual Download

Page: 9 / 11

DANGER!

To r e d u c e t h e r i s k o f

injury, always keep hands,

gloves, rags, clothing, etc. away from
moving parts and chips. Do not try to
remove chips while the cutter is rotating.
Chips are sharp and can pull objects into

moving parts.

Seal of Electrical Security

Read operator's manual

Wear hearing protection

Wear eye protection

SPECIFICATIONS

Cat. No. .................................................... 4272-59

Magnet........................................................ Electro
Volts .................................................... 220-240 AC
Hertz..............................................................50-60
Watts ............................................................. 1200
No Load RPM ......................... Low 475 / High 730
*Twist Drill ........................................................ 1/2"
HSS Cutter ...................................................1-5/8"

Cat. No. ..................................................4272-59A

Cat. No. .................................................... 4274-59

Magnet..................................................Permanent
Volts .................................................... 220-240 AC
Hertz..............................................................50-60
Watts ............................................................. 1200
No Load RPM ......................... Low 475 / High 730
*Twist Drill ........................................................ 1/2"
HSS Cutter ...................................................1-5/8"

Cat. No. ..................................................4274-59A

* Requires use of 1/2" drill chuck adapter, see "Ac-

cessories."

FUNCTIONAL DESCRIPTION

1. Slide rail
2. Carrying handle
3. Feed handle
4. Magnetic activation switch (4272 only)
5. Magnet activation knob (4274 only)
6. Speed selector

Cat. No. 4274

7. Motor adjustment lever
8. On(I) / Off(O) switch
9. Drill motor
10. Cutting fl uid fi tting
11. Quick-change arbor
12. Safety strap bracket (strap not shown)
13. Magnetic base
14. LED button
15. Hand pump and tub (not shown)

Cat. No. 4272

GROUNDING

WARNING

Improperly connecting the ground-
ing wire can result in the risk of

electric shock. Check with a qualifi ed electrician
if you are in doubt as to whether the outlet is
properly grounded. Do not modify the plug pro-
vided with the tool. Never remove the grounding
prong from the plug. Do not use the tool if the
cord or plug is damaged. If damaged, have it
repaired by a MILWAUKEE service facility before
use. If the plug will not fi t the outlet, have a
proper outlet installed by a qualifi ed electrician.

Grounded Tools: Tools with

Three Prong Plugs

Tools marked “Grounding Required” have a three
wire cord and three prong grounding plug. The plug
must be connected to a properly grounded outlet
(See Figure A). If the tool should electrically mal-
function or break down, grounding provides a low
resistance path to carry electricity away from the
user, reducing the risk of electric shock.
The grounding prong in the plug is connected through
the green wire inside the cord to the grounding
system in the tool. The green wire in the cord must
be the only wire connected to the tool's grounding
system and must never be attached to an electrically
“live” terminal.
Your tool must be plugged into an ap-
propriate outlet, properly installed and
grounded in accordance with all codes
and ordinances. The plug and outlet
should look like those in Figure A.

Double Insulated Plugs: Tools with

Two Prong Plugs

Tools marked “Double Insulated” do not require
grounding. They have a special double insulation
system which satisfi es OSHA requirements and com-
plies with the applicable standards of Un-
derwriters Laboratories, Inc., the Canadian
Standard Association and the National Elec-
trical Code. Double Insulated tools may be
used in either of the 120 volt outlets shown in
Figure B.

EXTENSION CORDS

Grounded tools require a three wire extension
cord. Double insulated tools can use either a two
or three wire extension cord. As the distance from
the supply outlet increases, you must use a heavier
gauge extension cord. Using extension cords with
inadequately sized wire causes a serious drop in
voltage, resulting in loss of power and possible tool
damage. Refer to the table shown to determine the
required minimum wire size.
The smaller the gauge number of the wire, the greater
the capacity of the cord. For example, a 14 gauge
cord can carry a higher current than a 16 gauge cord.
When using more than one extension cord to make
up the total length, be sure each cord contains at
least the minimum wire size required. If you are using
one extension cord for more than one tool, add the
nameplate amperes and use the sum to determine
the required minimum wire size.

Guidelines for Using Extension Cords

• If you are using an extension cord outdoors, be sure

it is marked with the suffi x “W-A” (“W” in Canada) to
indicate that it is acceptable for outdoor use.

• Be sure your extension cord is properly wired and in

good electrical condition. Always replace a damaged
extension cord or have it repaired by a qualifi ed
person before using it.

• Protect your extension cords from sharp objects,

excessive heat and damp or wet areas.

Recommended Minimum Wire Gauge

For Extension Cords*

Extension Cord Length

Nameplate

Amperes

25'

50'

75'

100'

150'

0 - 2.0

2.1 - 3.4
3.5 - 5.0
5.1 - 7.0

7.1 - 12.0

12.1 - 16.0
16.1 - 20.0

18
18
18
18
16
14
12

18
18
18
16
14
12
10

18
18
16
14
12
10

18
16
14
12
10

--
--

16
14
12
12

--
--
--

* Based on limiting the line voltage drop to fi ve volts at 150%

of the rated amperes.

READ AND SAVE ALL INSTRUCTIONS

FOR FUTURE USE.

ASSEMBLY

WARNING

To reduce the risk of injury, always
unplug tool before attaching or

removing accessories or making adjustments.
Use only specifi cally recommended accessories.
Others may be hazardous.

Attaching Feed Handle

1. To attach, line up the anvil, press the center button

and slide the handle into place on the desired side
of the tool.

2. To remove, press the center button and pull the

handle away from the tool.

Do not use a wrench, pipe, or any other lever in place
of the feed handle.

Motor adjustment lever

The motor adjustment lever is used to raise and lower
the motor on the slide rail. Always hold the motor
securely before loosening the adjustment lever.

OPERATION

WARNING

To reduce the risk of injury, wear
safety goggles or glasses with side

shields.

Typical Operation

1. Check the work surface to make sure it is clean

and free of foreign materials.

Paint, rust, scale or uneven surfaces decrease the

holding strength of the magnet. Chips, burrs, dirt
and other foreign materials on the surface of the
magnetic base will also decrease holding power.
Use a smooth, fl at fi le to keep the magnet clean
and free of nicks.

The 4272 drill attaches to 3/8" or thicker fer-

rous stock, and the 4274 to 1/4" or thick-
er ferrous stock. Do not use on stock less
than 1/4". The magnetic base WILL NOT hold
on nonmagnetic grades of stainless steel.

Fig. A

Fig. B