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14
Operating Instructions
Dremel 4300
Thank you for purchasing the Dremel 4300.
This product was designed by the many
Dremel users who passionately use their rotary
tools daily. This tool was designed to give you
the ultimate performance when working on
projects.
The Dremel 4300 is the MOST versatile rotary
tool available today. It has a wide speed range
including a high performance motor with
electronic feedback that allows the tool to
maintain its speed under load. The design of
the tool is symmetrical and contains plenty of
soft grip so the tool can be held comfortably in
many positions. The inclusion of the Dremel
Chuck allows you to use any shank size
accessory from 1/32” to 1/8” so that you don’t
have to change collets when you change to a
different size accessory. In addition, the
included worklight will help you see every detail
as you work on your project. You will appreciate
the many applications that the Dremel 4300
can easily tackle.
Rotary Tool Introduction
The Rotary Tool has a small, powerful electric
universal motor, is comfort able in the hand, and
is made to accept a large variety of accessories
including abrasive wheels, drill bits, wire
brushes, polishing accessories, engraving
cutters, router bits, cutting wheels and
attachments. Accessories come in a variety of
shapes and permit you to do a number of
different jobs. As you be come familiar with the
range of accessories and their uses, you will
learn just how versatile the Rotary Tool is. You’ll
see dozens of uses you hadn’t thought of
before.
The real secret of the Rotary Tool is its speed.
To understand the advantages of its high
speed, you have to know that the standard
portable electric drill runs at speeds up to 2,800
revolutions per minute. The Rotary Tool
operates at speeds up to 35,000 revolutions
per minute. The typical electric drill is a low-
speed, high torque tool; the Rotary Tool is just
the opposite – a high-speed, low torque tool.
The major difference to the user is that in the
high speed tools, the speed combined with the
acces sory mounted in the chuck or collet does
the work. You don’t apply pressure to the tool,
but simply hold and guide it. In the low speed
tools, you not only guide the tool, but also apply
pressure to it, as you do, for example, when
drilling a hole.
It is this high speed, along with its compact size
and wide variety of special accessories and
attachments, that makes the Rotary Tool differ -
ent from other tools. The speed enables it to do
jobs low speed tools cannot do, such as cutting
hardened steel, en graving glass, etc.
Getting the most out of your Rotary Tool is a
matter of learning how to let this speed work for
you. To learn about more uses and the
versatility of Dremel accessories and
attachments refer to this Owner's Manual or
check our website at www.Dremel.com or join
the conversation at facebook.com/dremel.
Using the Rotary Tool
The first step in learning to use the Rotary Tool
is to get the “feel” of it. Hold it in your hand and
feel its weight and balance. Feel the taper of
the housing. This taper permits the Rotary Tool
to be grasped much like a pen or pencil
(Fig. 7).
Always hold the tool
away from your face.
Accessories can be
damaged during
handling, and can fly
apart as they come up
to speed. This is not
common, but it does happen.
Whenever you hold the
tool, be careful not to
cover the air vents with your hand. This
blocks the air flow and causes the motor to
overheat.
Practice on scrap materials first to see how the
Rotary Tool's high speed action performs. Keep
in mind that the work is done by the speed of
the tool and by the accessory in the collet. You
should not lean on or push the tool during use.
Instead, lower the spinning accessory lightly to
the work and allow it to touch the point at which
you want cutting (or sanding or etching, etc.) to
begin. Con centrate on guiding the tool over the
work using very little pressure from your hand.
Allow the accessory to do the work.
For best control in close or detailed work, grip
the Rotary Tool like a pencil between your
thumb and forefinger (Fig. 7).
The “Golf Grip” method of holding the tool is
used for more aggressive operations such as
grinding a flat surface or using cutoff wheels
(Fig. 8).
Usually, it is best to make a series of passes
with the tool rather than attempt to do all the
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