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Picking a grinder might seem as simple as choosing a colour or a cord length, but this little tool can change how fast you work, how clean your cuts are, and how safe you feel on the job. Whether you’re cutting tile in a tight corner, removing rust from a metal gate, or shaping a piece of wood on the garage bench, the right grinder does the job faster and with less effort. Think of it like choosing the right pair of shoes for a hike — get the wrong type and you’ll feel it by the end of the day.
Grinders come in several flavours, each built for specific tasks. Knowing the difference helps you avoid buying the wrong tool. Below are the main types most UK DIYers and tradespeople reach for.
Angle grinders are the workhorse of the workshop. They use discs that range from about 4 1/2 inches to 9 inches, with 4 1/2 inches and 5 inches being the most versatile for home use. They’ll cut metal, grind welds, and slice tile. From compact 4 1/2-inch models that fit into tight spaces to larger 7-inch grinders for heavy demolition, angle grinders are the go-to for quick, aggressive work.
Bench grinders sit on a workbench and are ideal for sharpening chisels, cleaning up edges, and shaping small pieces. The typical bench grinder uses 6-inch wheels, though you can find smaller or larger models. They’re stable, more precise, and better for repetitive sharpening tasks than handheld grinders.
Straight and die grinders are for precision work, such as carving, deburring, or reaching tight spots. These often use small rotating bits rather than flat discs and are popular in metalwork and automotive tasks where finesse matters.
Not every store is the same. Some specialise in trade-grade tools, others offer the best bargains, and a few give wide brand choice plus fast delivery. Here are the UK shops worth checking when you’re ready to buy.
Screwfix is a favourite for tradespeople and serious DIYers because it balances professional-grade brands with sensible pricing. You’ll find a wide range of angle grinders, bench grinders, and accessories. Screwfix often has same-day click-and-collect and frequent stock of spare discs and replacement parts, which is handy if a job runs longer than expected.
Toolstation competes closely with Screwfix on price and availability, and it tends to stock a solid mix of budget and mid-range models. If you want a straightforward purchase experience and generous local branch coverage, Toolstation is reliable. They often run multi-buy offers on disc packs and consumables.
B&Q is easy to access for many homeowners and carries a good selection of cordless and corded grinders suited to lighter DIY. It’s a good place to start if you want a machine for occasional projects and prefer a familiar retail environment where you can also pick up other home improvement essentials.
Wickes stocks a practical range of tools aimed at renovators and DIY homeowners. Expect affordable grinders that balance capability with simplicity, plus accessories like cutting discs for tile and masonry. Wickes is handy if you’re planning a home revamp and need tools and materials in one trip.
Homebase caters to homeowners and garden enthusiasts, so you’ll see grinders suitable for light-to-medium tasks. It’s a good stop for occasional users who want decent value and clear product descriptions to help choose the right model without the jargon.
Argos is a good option for quick availability and straightforward returns (not that we’ll discuss return policy here). Their selection often includes popular brands and budget-friendly entry models, making it easy to snag a grinder for odd jobs like patio repair or basic metalwork.
Amazon offers virtually every brand and model imaginable, from budget units to premium pro-grade grinders. The platform shines for choice and long tail availability—if one seller is out of stock, another might have the same model. Read customer reviews and check seller ratings to separate the gems from the duds.
Machine Mart targets serious hobbyists and professionals who want power tools and workshop equipment. Their catalogue often includes higher-capacity bench grinders and specialist rotary tools, plus accessories you might not find in general DIY shops.
Axminster leans toward woodworking and specialist tools, but they also stock robust bench grinders and accessories for fine work. If you value precision and quality tooling—think sharpening the best chisels in your kit—Axminster is a strong contender.
For industrial users or professionals looking for durable kit, RS Components and C.P. Tools (CPC) have reliable models and technical specs that suit tradespeople who operate tools day after day. They’re particularly useful when specific electrical or mechanical specifications are needed.
Choosing between corded and cordless is like deciding between a sports car and a reliable hatchback: both have strengths. Corded models tend to deliver consistent power for heavy cutting and extended tasks, while cordless grinders offer freedom and portability for quick jobs or working in tight spaces where a cable is a nuisance.
Go corded if you regularly tackle heavy metalwork, demolition, or long grinding sessions. Corded grinders generally provide higher sustained power and don’t rely on battery life. They’re ideal for jobs that require continuous, forceful grinding, such as cutting thick steel or removing large welds.
Choose cordless if you need mobility, work at heights, or often operate where power sockets are scarce. Modern cordless models use lithium batteries and can run discs from 4 1/2 inches to 7 inches with surprisingly good power, though they may slow down under heavy load. Keep a spare battery handy for longer jobs.
Specs can look intimidating, but a few numbers will tell you most of what you need to know. Focus on disc size, speed (rpm), amperage or voltage, and weight in pounds. These determine how the grinder will feel and perform.
Disc size is one of the easiest things to check and has a direct impact on what you can cut. For general DIY, 4 1/2-inch and 5-inch discs are versatile for cutting and grinding in tight spaces. For heavier work like masonry or larger metal sections, 7-inch and 9-inch discs deliver faster cutting and longer edge life. Always match the disc to the tool’s maximum rated size.
Look for no-load speed in rpm — many angle grinders run between about 8,000 rpm and 12,000 rpm. Higher rpm cuts faster but can be harder to control with large discs. Torque affects how well a grinder can maintain speed under load. If you’re cutting something tough, a model that holds rpm under stress will finish the job with less fuss.
For corded grinders, pay attention to amperage — higher amps typically mean more cutting power in the motor. For cordless, voltage gives a rough sense of capability; higher voltage batteries usually mean more grunt, but also more weight. Try to balance power with comfort, measured in pounds.
Grinder weight affects control. A light 4 1/2-inch model might weigh around 4 to 6 lb and feels nimble, while larger 7-inch models can tip into the 9 to 12 lb range. Pick a tool you can handle for the duration of the task without fatigue. Look for side handles and soft grips to help control heavy work.
Grinders are powerful tools that throw sparks and debris, so safety gear and the right accessories matter as much as the machine. Think of them as life insurance for your fingers and your workshop.
Always use safety goggles or a face shield, heavy-duty gloves, and hearing protection. Respiratory masks are a smart choice when cutting masonry or working with paint and rust. A sturdy apron and close-fitting clothing keep fabric out of rotating parts — small precautions, big difference.
Invest in good cutting discs, grinding wheels, flap discs for finishing, and diamond blades for tile and masonry. A quick-change guard and a good set of spare brushes extend the life of a grinder. Also, keep a wire brush attachment or flap disc handy for surface cleaning and finishing work.
Whether you’re a weekend warrior or a full-time tradesperson determines many buying choices. Budget, durability, and serviceability all shift depending on how often you use the tool.
If you use a grinder for odd jobs, a 4 1/2-inch or 5-inch cordless or corded model is usually perfect. It’s light, affordable, and versatile for patio repairs, garden metalwork, and home renovations. Look for good value bundles that include spare discs and a case.
Professionals need tools that stand up to daily use. Choose higher-capacity 7-inch corded grinders or heavy-duty bench grinders for repeatable, demanding tasks. Pay attention to build quality, motor cooling, carbon brush accessibility, and warranty terms. Pro users also benefit from ergonomics that reduce vibration and fatigue over long shifts.
Shopping smart means comparing specs, prices, and availability across multiple sellers. Look at big retailers for convenience, specialist stores for niche items, and marketplaces for broad choice. Don’t forget to factor in extra costs for discs and accessories when comparing prices.
You’ll often spot the best bargains during seasonal sales, bank holiday promotions, or trade-events. If you’re not in a rush, watch for clearance lines when new models arrive — that’s where you can snag a pro-grade grinder at a bargain price.
Little maintenance goes a long way. Clean dust and debris from vents after each job, inspect guards and switches regularly, and replace worn discs immediately. For corded models, check the power cord for nicks and frays. For cordless, keep batteries charged and store them in a cool, dry place to extend life.
Carbon brushes wear out over time; most grinders allow easy replacement, so keep a spare set. If you hear grinding noises or notice play in the spindle, bearings might be worn — replace them before they damage the motor. Routine attention can add years to a tool’s life.
Before you press “buy,” run through a quick checklist: match disc size to your needs, check weight in pounds, confirm motor power (amps or voltage), decide corded vs cordless, inspect safety features like guard and dead-man switch, and ensure spare discs and accessories are readily available.
Armed with this guide, you’ll shop smarter, work faster, and get the most from whatever grinder you choose. From the small 4 1/2-inch angle grinders that tackle awkward corners to the heavy bench grinders that keep chisels razor-sharp, the right tool makes the task feel easier than you imagined.
Choosing the right grinder in the UK comes down to matching tool type, disc size, power source, and ergonomics with your projects. Shops like Screwfix, Toolstation, B&Q, and specialist retailers such as Machine Mart and Axminster give you plenty of options depending on budget and use. Prioritise safety gear, accessories, and maintenance to keep your grinder working well for years. With the right choice, a grinder becomes not just a tool, but a trusted workshop companion.
| Grinders | Price | |
|---|---|---|
| Ck 6 Saw File Standard Three Sided | £ 7,- |
