Cordless Angle Grinders

About Cordless Angle Grinders

Cordless angle grinders combine the cutting and grinding performance of traditional corded models with the freedom to work anywhere without trailing cables. These versatile power tools use rechargeable lithium-ion batteries to drive rotating abrasive discs at high speeds, making them essential for cutting metal, grinding welds, removing rust, and preparing surfaces across construction, fabrication, and maintenance applications. Available in disc sizes from 76mm to 125mm, modern cordless angle grinders feature brushless motor technology that maximises battery efficiency and delivers power comparable to 240v corded alternatives.

MyToolShed.co.uk stocks cordless angle grinders from leading professional brands including Makita, Bosch Professional, and DeWalt, alongside excellent value options from Einhell and Bosch Home and Garden ranges. Most professional models operate on 18V battery platforms, offering the best balance of power and portability, whilst compact 12V grinders suit lighter-duty tasks and overhead work where weight reduction matters. Advanced features such as X-LOCK quick-change systems, electronic brakes, and anti-kickback protection enhance both productivity and safety on site.

Applications

Cordless angle grinders are used across numerous trades and industries:

• Metal Fabricators and Welders – cutting steel sections, grinding weld seams, and preparing joints for fabrication work
• Construction Workers – cutting reinforcement bar, chasing walls for services, and removing concrete at height or on scaffolding
• Plumbers and Pipefitters – cutting and deburring copper, steel, and cast iron pipework in tight spaces
• Mechanics and Vehicle Technicians – removing seized bolts, cutting exhaust systems, and bodywork repairs
• Stonemasons and Tilers – cutting paving slabs, tiles, and natural stone with diamond discs
• Maintenance Engineers – general repair work, surface preparation, and removing damaged fixings
• Roofing Contractors – cutting metal flashings and roofing sheets where mains power isn't accessible
• DIY Enthusiasts – home improvement projects including patio laying, metal gate repairs, and renovation work

Choosing The Right Cordless Angle Grinders

Voltage Platform: Professional 18V models from Makita, DeWalt, and Bosch Professional offer excellent power for demanding applications, whilst 12V grinders suit lighter tasks. Stay within your existing battery platform to share batteries and chargers across your cordless tool collection, maximising investment value.

Disc Size: Choose between 115mm and 125mm discs based on your typical applications. Larger 125mm grinders provide deeper cuts (30-35mm) and faster material removal for heavy-duty work, whilst 115mm models offer better manoeuvrability for overhead tasks and precision work in confined spaces.

Motor Technology: Brushless motors deliver approximately 50% longer runtime, greater power efficiency, and extended tool lifespan compared to brushed designs. MyToolShed.co.uk recommends brushless models for professional users and frequent operation, whilst brushed motors remain perfectly adequate for occasional DIY use.

Battery Capacity: Invest in 4.0Ah or 5.0Ah batteries for sustained professional work. Higher capacity batteries provide longer runtime but add weight—consider purchasing multiple batteries to maintain productivity throughout the working day during intensive grinding or cutting tasks.

Safety Features: Look for electronic brakes, anti-kickback protection, soft-start functions, and paddle switches. Professional models often include vibration reduction systems and tool-free guard adjustment for enhanced comfort during extended use.

Safety Information

Always wear appropriate PPE including safety glasses or face shield, hearing protection, and work gloves when operating cordless angle grinders. Respiratory protection is essential when cutting materials that generate dust—consult COSHH guidelines for specific materials. Ensure workpieces are securely clamped and never operate grinders with damaged or incorrectly fitted discs. Check disc speed ratings exceed the tool's no-load RPM before use.

Never remove safety guards and position yourself to the side of the disc's rotation plane. Inspect discs before each use for cracks or damage. Follow HSE guidance on vibration exposure and take regular breaks during extended grinding to prevent Hand-Arm Vibration Syndrome (HAVS). Always remove the battery when changing discs or performing maintenance, and use only manufacturer-approved batteries and chargers.

Frequently Asked Questions

How long does a battery last in a cordless angle grinder?

Battery runtime depends on capacity (Ah rating) and work intensity. A 5.0Ah battery typically provides 20-30 minutes of continuous heavy grinding or 45-60 minutes of intermittent cutting. Brushless motor models from brands stocked at MyToolShed.co.uk deliver substantially longer runtime than older brushed designs. For professional use, invest in multiple batteries to rotate throughout the day.

Can I use batteries from my other cordless tools?

Yes, if you stay within the same manufacturer's battery platform. Makita LXT 18V, DeWalt XR 18V, and Bosch Professional 18V batteries are interchangeable across each brand's respective tool ranges, making cordless systems increasingly cost-effective as your collection grows.

Are cordless angle grinders powerful enough for professional work?

Modern 18V brushless cordless angle grinders now rival 240v corded models for power and performance, particularly professional ranges from Makita, Bosch Professional, and DeWalt. They excel at site work where mobility matters, though for sustained heavy grinding in workshop settings, corded models may still offer advantages for exceptionally demanding applications.