Käsisirkkeli

Käsisirkkeli, also known as a circular saw, is a portable power tool used for cutting wood and other materials. It consists of a motor that rotates a toothed metal blade at high speed. The blade cuts through the material as the saw is guided along a desired line. Käsisirkkelit are commonly used in construction, woodworking, and DIY projects for tasks such as ripping lumber, making crosscuts, and creating dados.

There are various types of käsisirkkelit available, differing in blade size, power, and features. Common blade diameters range from 135 mm to 235 mm, with larger blades capable of deeper cuts. The power of the motor is typically measured in watts or amperage, affecting the saw's cutting speed and ability to handle tougher materials. Some käsisirkkelit feature adjustable bases that allow for bevel cuts, while others include dust collection systems to minimize airborne debris. Safety features are crucial and often include blade guards, electric brakes that quickly stop the blade when the trigger is released, and spindle locks for easier blade changes.

Proper use of a käsisirkkeli requires safety precautions. This includes wearing safety glasses or goggles, hearing protection, and appropriate clothing to avoid entanglement. Maintaining a firm grip on the saw and ensuring the material is securely clamped are also essential for safe operation. When cutting, it's important to let the saw do the work without forcing it, which can lead to binding or kickback, a dangerous sudden upward or forward movement of the saw. Regular maintenance, such as keeping the blade sharp and clean, ensures optimal performance and safety.