Angle Grinders

Choosing the correct size is the most critical step, as it determines both the cutting depth and the level of control you have over the tool.

• 115mm - 125mm: These are the most versatile grinders, ideal for tasks requiring precision and maneuverability. The 125mm disc is the market standard, offering the optimal cutting depth for pipes, metal plates, and construction materials while remaining light enough for one-handed use (where safety permits).
• 230mm: These are heavy-duty tools designed exclusively for large-scale projects, such as cutting pavement, large steel beams, or thick concrete. Due to their weight and high torque, they always require two-handed operation and significant handling experience.

Wattage represents the motor's power and its ability to maintain constant speeds under heavy load.

• For light tasks, such as cleaning rust from surfaces or making small cuts in thin metal, a grinder between 700W and 900W is more than enough.
• For intensive professional use (e.g., in metal fabrication shops or construction sites), we recommend models ranging from 1100W to 1700W. These tools feature advanced cooling systems and more durable windings, ensuring they don't overheat when pushed against hard materials. A more powerful motor doesn't necessarily mean higher speed, but rather greater durability over time.

While many believe a grinder should always run at "max" speed, variable speed control is a crucial advantage for several reasons.

• Material Sensitivity: When polishing stainless steel (Inox) or removing paint, high speeds generate excessive heat that can "burn" or warp the material.
• Accessory Safety: Many accessories, such as wire brushes or specialized flap discs, have specific RPM limits. Using lower speed settings protects the consumable from premature wear and protects the user from flying wires or debris caused by excessive centrifugal force.

The choice depends primarily on your work environment and the intended duration of use.

• Corded Angle Grinders: These remain the number one choice for long-duration tasks, such as continuous metal cutting or grinding large surfaces. Their main advantage is consistent performance without autonomy limits and a generally lower purchase price relative to their power. They are ideal for workshops and sites with easy access to power outlets.
• Cordless Angle Grinders: They offer total freedom of movement, making them indispensable for working at heights, outdoors without power access, or for quick on-the-go repairs. With the evolution of Lithium-ion batteries and Brushless motors, modern cordless grinders rival corded models in power, though they require an investment in batteries and chargers.

Proper maintenance ensures your tool performs like new for years.

• Cleaning: After every use, blow out the ventilation slots with compressed air to remove metallic dust that accumulates inside the motor.
• Carbon Brush Replacement: Regularly check the brushes and replace them before they are completely worn out to prevent damage to the motor's armature.
• Correct Consumables: Always use high-quality, balanced discs. Poor-quality discs cause unnecessary vibrations that put excessive strain on the tool's bearings and internal components.