Dremel 800 owner manual Operating Speeds For Accessories, Using the Cordless Rotary Tool

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Using the Cordless Rotary Tool

The first step in learning to use the Cordless 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 tool to be grasped much like a pen or pencil.

When you turn on the tool for the first time, hold it 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.

Practice on scrap materials first to see how the Cordless Rotary Tool cuts. 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 into the work.

For best control in close work, grip the Rotary Tool like a pencil between your thumb and forefinger.

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 lit- tle pressure from your hand. Allow the accessory to do the work.

Usually, it is best to make a series of passes with the tool rather than attempt to do all the work in one pass. To make a cut, for example, pass the tool back and forth over the work, much as you would a small paint brush. Cut a little material on each pass until you reach the desired depth. For most work, the deft, gentle touch is best. With it, you have the best control, are less likely to make errors, and will get the most efficient work out of the accessory.

The “handgrip” method of holding the tool is used for operations such as grinding a flat surface or using cutoff wheels.

Operating Speeds For Accessories

Set the speed indicator to fit the job to achieve the best job results when working with different materials.

To select the right speed for each job, use a practice piece of material. Vary speed to find the best speed for the accessory you are using and the job to be done.

Your Cordless RotaryTool is equipped with a variable speed control dial. To turn the tool ON, rotate dial to desired number to select the operating speed needed from 5,000 – 35,000 RPM. To turn tool OFF, rotate dial to the “0” off position.

You can refer to the charts on page 13, 14, and 15 to determine the proper speed, based on the material

being worked and the type of accessory being used. These charts enable you to select both the correct accessory and the optimum speed at a glance.

Needs for Slower Speeds

Certain materials, however, (some plastics, for ex- ample) require a relatively slow speed because at high speed the friction of the tool generates heat and caus- es the plastic to melt.

Most work is done at high speed on your Cordless Rotary Tool. Lower speeds are needed only for certain tasks.

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