Use and Care Manual

ManualsBrandsMilwaukee ManualsDrill/DriversMilwaukee 13 Amp 1-5/8 in. Electromagnetic Drill Kit

1. Slide rail

2. Carrying handle

3. Feed handle

4. Magnet activation

switch (4272-21 only)

5. Magnet activation knob

(4274-21 only)

6. Speed selector

7. Motor adjustment lever

8. On(I) / Off(O) switch

9. Drill motor

OPERATION

WARNING To reduce the risk of injury,

wear safety goggles or glasses with side

shields.

ASSEMBLY

Attaching Feed Handle

1. To attach, line up the anvil, press the center but-

ton 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.

FUNCTIONAL DESCRIPTION

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 4272-21 drill attaches to 3/8" or thicker

ferrous stock, and the 4274-21 to 1/4" or

thicker ferrous stock. Do not use on stock

less than 1/4". The magnetic base WILL NOT

hold on nonmagnetic grades of stainless steel.

2. To install/remove cutter:

A. Unplug tool.

B. Raise the drill motor to its highest position

on the slide rail.

C. Twist the quick-change arbor. Insert the cut-

ter into the arbor and release collar. Tug on

cutter to ensure it is secure. Cutter should

be fully seated into spindle.

D. Reverse procedure to remove cutter.

NOTE: Do not remove cutter unless slug is

removed. Slug may eject unexpectedly. Avoid

contact with cutter tips. Periodically inspect the

cutter tips for loose or damaged tips.

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

tube (not shown)

1312

Fig. B

Fig. C

Fig. A

GROUNDING

WARNING Improperly connecting the

grounding wire can result in the risk of elec-

tric 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

provided 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

malfunction 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 appropriate outlet, properly

installed and grounded in accord-

ance with all codes and ordinances.

The plug and outlet should look like

those in Figure A.

Double Insulated Tools:

Tools with Two Prong Plugs

Tools marked “Double Insulated” do not require

grounding. They have a special double insula-

tion system which satisﬁ es OSHA requirements

and complies with the applicable standards of

Underwriters Laboratories, Inc.,

the Canadian Standard Asso-

ciation and the National Elec-

trical Code. Double Insulated

tools may be used in either of

the 120 volt outlets shown in

Figures B and C.

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.

READ AND SAVE ALL

INSTRUCTIONS FOR FUTURE USE.

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

150% of the rated amperes.

EXTENSION CORDS

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

WARNING To reduce the risk of injury,

always unplug tool before attaching or remov-

ing accessories or making adjustments. Use

only speciﬁ cally recommended accessories.

Others may be hazardous.

Cat. No. 4274-21

Cat. No. 4272-21