Needle scalers

An air needle/chisel scaler is used to remove corrosion marks, mill scale, old paint when the car is being repaired and to polish welds. Such tools deliver 3–5 thousands of blows per minute which helps to finish work as quickly as possible.

Types of air scalers

According to the body shape, these tools can be straight or pistol-type. Scalers, presented in the catalogues of different manufacturers vary in weight, power, speed, pressure, air consumption, etc. Some tools are equipped with a rubber damper to reduce vibration and noise. Depending on the working element type, they are divided into:

• Tools with a chisel. They permit to perform a precise treatment. Can be fitted with bits of different sizes. Chisels that are used in many tools have a channel, through which the air comes out and cleans the surface of the workpiece.
• Tools with needles. They are equipped with several thick needles to make the treatment area larger. The needles adjust their position automatically depending on the surface. Such air scalers differ from each other in the number, length and diameter of needles.

Air needle/chisel scaler: maintenance tips

1. While working, you should wear safety glasses, protective gloves and earmuffs.
2. Prior to using these tools, you should remove oil or any other contaminants from the car parts with degreasers.
3. It is recommended to hold the scaler at a 45° angle to the surface.
4. After using the tool, it is recommended to apply paint on the processed workpiece as soon as possible, since bare metal is highly prone to corrosion.
5. When the work is finished, it is necessary to clean the scaler using compressed air and a damp cloth without any chemicals.

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