Sturm screwdrivers: models, selection and operating rules

Sturm screwdrivers have been on the market for 15 years, during this period they have established themselves as reliable and high-quality equipment. Among the rich assortment, there are cordless and power tools that differ in their functionality, price and characteristics.

The company strives to always be on top of success, therefore it does not spare funds for new developments. Today, Sturm models feature completely different mechanics, and the build quality is at the highest level.

Sturm technology assists in screwing and unscrewing screws, drilling holes of different diameters, tapping and even pulling on anchors. Good equipment, according to the founders of the company, should not be expensive, this is what Sturm has been proving for 15 years.

Each model must be tested in real-life conditions. The products are supplied to the market with quality certificates from Rostest.

When choosing a screwdriver, it is worth considering the following characteristics:

• speed;
• number of revolutions;
• torque;
• battery type;
• availability of additional features.

Speaking specifically about the functionality of the Sturm screwdrivers, then the user has the opportunity to buy a tool with the following additional functions:

• reverse;
• spindle blocking, which is carried out in automatic mode;
• the ability to adjust the rotation speed;
• the presence of backlight;
• installed battery indicator;
• brake.

Cordless tools from this manufacturer are commercially available with two types of battery:

• nickel-cadmium;
• lithium ion.

The first ones are distinguished by their low cost, stable operation, regardless of changes in the ambient temperature. Special storage conditions are imposed on them, since they have a strong memory effect, therefore, while the devices are not in use, they should be completely discharged. Lithium-ion batteries have no memory effect, they have much more capacity, and the charge is held longer, they are much lighter.

The keyless chuck is standard on all Sturm products, as it saves the user time for tool changes and is much more convenient than a jaw chuck.

It is of two types:

• single-seat;
• two-clutch.

Changing the nozzle with a single-sleeve cartridge is done quickly, with one hand, in the second case, one hand pushes the first sleeve, and the other unscrews the second.

In the design of cordless and mains screwdrivers there is an engine, on which the operation of the tool depends. The force generated by the motor is first transferred to the gearbox, and then to the spindle.

The clutch integrated in the gearbox is responsible for torque control. The spindle is equipped with a chuck and a holder, on which the equipment is placed. Any nozzle that will be used by the operator is inserted into the chuck and the socket in it. When the energy generated by the motor is converted and amplified, the rig begins its movement at a speed set by a person or at a set number of revolutions.

As mentioned above, all Sturm models are divided into two large groups: battery and mains. Battery-type equipment prevails - electric screwdrivers can have a power of 12, 14.4 or 18 volts. Their demand is due to their compactness and mobility.

Electric screwdrivers Sturm CD31181, CD3118C and CD30181 have a nickel-cadmium battery in the design. They are perfect for housework, since they do not have a lot of power, but the manufacturer has provided two rotation speeds, the ability to adjust the speed, reverse.

The grip has a rubber grip for better grip. In a fully charged state, such a tool can work for 60 minutes. Models are supplied with an additional battery, so you can change it at any time and continue with the task at hand.

Electric screwdrivers Sturm CD3014C and CD3112C characterized by small dimensions and low weight. They are very comfortable, but with the same speed. It is possible to adjust the number of revolutions.

Model Sturm CD3010L equipped with a lithium-ion battery. Thanks to such a battery, the charge is retained longer, even during a break there is no energy loss. For the convenience of the user, a battery charge indicator is provided on the case. The Sturm CD3010L electric screwdriver can be praised for having electronic adjustment of the number of revolutions per minute and reverse. The power button can be blocked, so accidental start is completely excluded. The user will be pleased with high-quality and correctly directed illumination.

Attention cannot be ignored Sturm ID2130, which in the entire product line of the company is one of the most compact and lightweight. The speed and the number of revolutions can be adjusted.

It is easy to find parts for Sturm screwdrivers - this is one of their main advantages. Any service will quickly and inexpensively repair the engine, gearbox or replace the cartridge.

The manufacturer tried to take into account the needs of consumers and supplied its products with good components. All models are supplied with an original charger, which also differs in the build quality and materials used. Some screwdrivers come with an additional battery, which allows you to use the tool until the task is complete.

All equipment fits into a special suitcase, which greatly simplifies the process of storing and transporting the screwdriver.

Before buying, the user should know that All Sturm screwdrivers can be divided into two large groups:

• professional;
• household.

They differ in performance, as those designed for professional use have more power and wider functionality.

When drilling dense surfaces in professional screwdrivers, the number of revolutions approaches the 1300 mark, and for those that can only work with wood, plastic and metal, this figure reaches 600 rpm.

The advantage of equipment with little functionality is its cost., while more expensive screwdrivers differ in that they can solve much more complex problems. Battery models differ not only in the type of built-in battery, but also in its capacity. A professional screwdriver of this type should fully replenish the charge in an hour, while a tool for everyday tasks will take about 7 hours.

On expensive models, sometimes there are up to 22 possible adjustments, including - speed, number of revolutions, direction of drill movement, backlight, etc. You should definitely pay attention to screwdrivers, which provide the ability to switch between impulse and impact modes.

Any construction tool must be used in compliance with safety requirements and in accordance with the rules prescribed in the manufacturer's instructions.

So, there are the following rules:

• immediately stop working with the tool, from which there is smoke or a smell of burnt plastic;
• before work, the screwdriver is required to inspect and assess the presence of malfunctions;
• it is impossible to work with the equipment if the ambient temperature exceeds + 40 degrees;
• it is forbidden to independently change the configuration, replace parts, disassemble the battery;
• storage batteries are stored completely discharged away from metal objects in a dry room;
• the charger is disconnected from the network if it is not needed, and the battery is removed from the power supply after it is fully charged (otherwise its capacity decreases);
• the handle of the screwdriver must be dry, without signs of grease and grease;
• The attachments are regularly cleaned and kept sharp.

Most of the reviews about this firm's screwdrivers are pretty good. Users noted attractive power, reliability, and no vibration.

Some say that the case heats up during operation - on average, after five minutes of activity, the temperature reaches 40 degrees, for this reason the question of the safety of the equipment arises. Users are also dissatisfied with the constantly growing cost.

For the pros and cons of the Sturm screwdriver, see the video below.