Cordless shears

Cordless angle grinders have evolved significantly, now rivaling corded models in performance for most professional applications. Bosch's advanced ProCORE18V technology and brushless motors deliver similar power output to corded models while reducing heat generation and extending battery life. The absence of cords provides unrestricted movement, particularly valuable when working at heights, in confined spaces, or across large sites. While corded models still offer unlimited runtime, Bosch's high-capacity batteries provide sufficient working time for most jobs, with their quick-change battery system allowing continuous operation. The latest Bosch professional cordless grinders like the GWX 18V-10 SC match corded models in RPM (typically 8,000-11,000) and handle the same range of cutting, grinding and polishing tasks. For professionals regularly working in locations without reliable power access, the productivity gains from Bosch's cordless mobility often outweigh the occasional need to swap batteries.

Runtime for cordless angle grinders varies based on several factors including battery capacity, material being worked, and operation intensity. With a Bosch ProCORE18V 5.0Ah battery, expect approximately 20-25 minutes of continuous heavy grinding on metal or 30-40 minutes of intermittent use. For lighter applications like sanding or polishing, runtime extends to 45-60 minutes. Bosch's brushless motor models deliver up to 30% longer runtime compared to brushed alternatives. Professional users typically carry multiple Bosch batteries, with their rapid chargers restoring 80% capacity in under 40 minutes, enabling continuous workflow. Bosch's lithium-ion technology maintains consistent power output until the battery is nearly depleted, unlike older batteries that gradually lose performance. For maximum efficiency, many professionals organize workflow to include tasks requiring other Bosch tools while batteries recharge, taking advantage of the cross-compatibility across the Bosch Professional 18V system.

Most Bosch professional cordless angle grinders accommodate 115mm (4.5") or 125mm (5") discs, balancing cutting capacity with battery efficiency. These standard sizes ensure compatibility with Bosch's comprehensive range of accessories for different applications. For metal cutting, Bosch's thin kerf X-LOCK discs maximize battery efficiency while providing clean cuts. When grinding metal, Bosch aluminum oxide discs offer the best balance of material removal rate and battery consumption. For masonry and concrete, Bosch diamond-tipped discs deliver superior performance and longevity despite their higher initial cost. Bosch flap discs work exceptionally well for surface preparation and finishing on cordless models, as their progressive wearing provides consistent performance without overtaxing the motor. Many professionals prefer Bosch's innovative X-LOCK system available on select models, which eliminates the need for spanners when changing accessories, saving valuable time on job sites while ensuring secure disc mounting.

Bosch cordless angle grinders incorporate comprehensive safety features including their proprietary KickBack Control technology that detects sudden tool movement and automatically shuts down the motor to prevent accidents. Bosch's restart protection prevents unintended activation if a battery is inserted while the switch is on. Look for Bosch models with electronic braking systems that stop the disc within seconds when the trigger is released, reducing accident risk during disc changes or when setting the tool down. Bosch's ergonomic designs with vibration control technology reduce hand fatigue and improve control during extended use. Additional essential safety features in Bosch grinders include tool-free adjustable guards that can be repositioned without wrenches, soft-start functionality that prevents jerking during startup, and paddle switches requiring continuous pressure for operation. For professionals working in hazardous environments, Bosch's dust-protected electronics and sealed switches ensure reliable operation and extended tool life even in challenging conditions.

Regular maintenance significantly extends the life and performance of your Bosch cordless angle grinder. After each use, remove the battery and clean dust from ventilation slots using compressed air to prevent motor overheating. Inspect the Bosch-engineered guard and mounting hardware weekly for damage or loose fittings that could compromise safety during operation. Keep the disc flange and arbor nut clean and free from debris to ensure proper disc mounting and reduce vibration. For Bosch batteries, avoid completely depleting them before recharging, as this can shorten overall lifespan. Store Bosch batteries at approximately 40-80% charge if unused for extended periods. Periodically check carbon brushes (if applicable) for wear, and have them replaced with genuine Bosch parts when necessary to prevent motor damage. Apply a drop of light machine oil to moving parts like the disc guard pivot points quarterly. Finally, store your Bosch grinder in a dry environment with discs removed to prevent warping and maintain safety when the tool is next used.