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Ever needed to cut a perfect circular hole in wood, metal, or tile and wished you had a magic cookie-cutter for drills? That’s basically what a hole saw does. A hole saw is a cylindrical cutting blade that attaches to a drill via an arbor to bore clean, round holes ranging from tiny openings to several inches across. Whether you’re running cables, installing pipes, fitting door hardware, or cutting holes for recessed lights, a good hole saw makes the job faster, cleaner, and far less stressful.
Hole saws aren’t one-size-fits-all. They’re made in different materials for different tasks: bi-metal for general-purpose wood and metal work, carbide or diamond-coated for tough materials like ceramic tile or stone, and specialized carbon-steel for wood. You’ll use a 1/2" or 3/4" saw for pilot holes and cable ports, a 2" to 3-1/2" saw for plumbing or pipe penetrations, and larger cutters—3-1/2" to 6" and up—for big duct or fan holes. Think of them like a set of pizza cutters—thin blades for a crisp slice on soft dough, heavy serrated cutters for a deep-crust pie.
Bi-metal hole saws are the workhorse of general DIY and trade use. They typically combine high-speed steel cutting teeth bonded to a flexible alloy body so they won’t snap easily and can cut through thin-gauge steel and wood. If you want one versatile set that survives jobsite knocks, start here.
When the job involves masonry, stone, or tile, carbide or tungsten-tipped hole saws are the better bet. They stay sharp longer and handle abrasive surfaces without burning out. They can be pricier than bi-metal saws, but they save time and avoid chipping when you’re working with fragile materials.
For porcelain, ceramic, or granite, diamond blades are the specialist tool. These saws often require water cooling and slower drill speeds, but they produce clean holes without cracking fragile surfaces. Diamond saws are the go-to for tilers and bathroom fitters tackling delicate finishes.
If you want fast availability and trade-worthy kits, Screwfix is a reliable choice. They stock a broad range from small single cutters to multi-piece sets in 1/2" up to 4" and larger. You’ll find branded options like DeWalt, Bosch, and Evolution, plus screwfix-branded economy sets for quick jobs. Their product pages show compatibility and diameter ranges clearly, making it easy to buy the right size for your project.
B&Q is a high-street staple for home improvers. Their hole saws skew more towards the DIY end—good-quality bi-metal sets and single cutters for timber and soft metals, plus some tile-cutting options. It’s a good stop if you want to pick up accessories like arbors or pilot bits alongside paint and screws for a full weekend project.
Toolstation is another favourite for tradespeople hunting for value and availability. They often offer decent multi-piece kits at competitive prices, and you can find specialist brands alongside cheaper alternatives. Toolstation’s stores and online stock make it easy to match a hole saw to a specific task without breaking the bank.
Wickes combines home improvement convenience with trade-level goods. They carry hole saw sets suitable for woodworkers, plumbers, and electricians, and you’ll often find larger diameter saws for HVAC or ductwork projects. Their selection is good if you need a balance between DIY simplicity and professional performance.
Homebase is handy for homeowners looking for a straightforward solution. Expect beginner-friendly kits, single cutters in common sizes like 3/4", 1", 2", and some masonry options for bathroom work. It’s ideal when you want to grab a tool quickly while shopping for domestic renovation supplies.
Amazon UK is a vast marketplace where virtually every brand and niche specialist exists. From budget multi-packs to premium DeWalt, Bosch, and Lenox kits, it’s a great place to compare prices and read long user reviews—useful for judging real-world performance. Just double-check vendor credentials and warranty terms before you click buy.
RS Components and Cromwell (including Machine Mart) serve trade and industrial buyers with high-spec hole saws and arbors built for repeated heavy use. If your day involves cutting dozens of holes a week, these suppliers offer durable solutions, specialty sizes, and compatibility details that matter for long-term reliability.
Start with the diameter you need. Do you want a snug hole for a 1" pipe or a tidy 3-1/2" hole for a recessed light? Measure twice. Hole saws are usually listed in inches—common ranges are 3/8", 1/2", 3/4", 1", 1-1/2", 2", 2-1/2", 3", and larger. If you’re working with British fixtures, remember many manufacturers still use imperial sizes for hardware, so sticking to inches keeps compatibility simple.
Match blade material to the material you’re cutting. For wood and soft metal, go with bi-metal. For hard or abrasive surfaces—like ceramic tile, brick, or stone—pick carbide-tipped or diamond-segmented saws. If you don’t match the material, you’ll blunt the blade quickly or risk chipping the workpiece.
Make sure the arbor (the bit that attaches the saw to the drill) actually fits your drill chuck and the saw itself. Some sets include a universal quick-change arbor that fits 1/2" chucks, while specialist saws might need a separate mandrel. Check whether the kit includes pilot bits and spare teeth, which can save time on the job.
Kits: If you do a variety of tasks or expect to match different diameters, a multi-piece kit gives you the range you need without separate purchases. Kits often include an arbor, pilot drill, and multiple sizes from around 3/8" up to 2-3/4". They’re great for generalists and DIYers.
Single blades: If you only need one or two sizes—say a 2" saw for a pipe penetration—buying a single blade is cheaper and often higher quality for that size. Pros often build a core set of favorites and buy single premium blades for specific materials like porcelain.
Brand choice matters more when you’re cutting professional volumes or working on precious surfaces. DeWalt, Bosch, Lenox, Irwin, and Milwaukee are known for solid build quality and long-lasting teeth. Evolution and Makita also offer great mid-range sets. For diamond and tile work, brands such as Rubi and M14-specific suppliers are trusted by tradespeople. If you buy a cheaper set from a general retailer, be realistic about lifespan—expect to replace blades more often.
Use lower RPMs for larger diameters and harder materials—think slow and steady, not fast and furious. High speed creates heat, which dulls teeth quickly. Apply steady pressure; don’t force the saw through the material. Let the tool do the cutting.
For metal or tile, keep things cool. A little cutting oil on metal or water on tile reduces friction and preserves the blade. Some diamond hole saws are designed for wet cutting—use a constant water trickle to avoid overheating and to keep the cut clean.
After you cut through, the core plug can stick inside the saw. Many kits include an ejector plate; otherwise, tap the saw gently or use pliers to remove the plug. Clearing chips frequently prevents clogging and keeps the teeth cutting efficiently.
Keep hole saws clean and dry to prevent rust. For bi-metal saws, a few drops of oil after use helps. Most hole saws aren’t re-sharpened like drill bits—if they become blunt, replacement is usually more cost-effective. Store blades in a case to protect teeth and keep arbors with the correct saws to save time on the next job.
When you need uncommon diameters—say a 5-1/2" or a 6" saw—or specialty items like deep-cutting arbors, look to industrial suppliers such as RS Components, Cromwell, and Machine Mart. They stock larger-diameter saws and heavy-duty arbors required for HVAC and large-diameter plumbing work. Online marketplaces also connect you with niche diamond and masonry suppliers if you’re tackling a unique material.
Online shopping gives you wider choice and the chance to compare hundreds of user reviews, which helps spot trends in durability and fitment. In-store shopping lets you feel the weight, ask staff for compatibility advice, and walk away with the tool immediately—handy for last-minute jobs. If time is tight, choose a retailer with local stores like Screwfix or B&Q; for specialist bits and warranties, RS Components or brand-authorized dealers are often the best bet.
Entry-level single hole saws can start at a few pounds for small diameters, while decent multi-piece kits range from around £20 to £80 depending on brand and number of pieces. Professional-grade or diamond-tipped saws and large-diameter cutters are pricier—expect to pay £50 to several hundred for specialist or industrial-grade tools. Think of it like buying shoes: a cheap pair gets you around the block, but a quality pair lasts through miles of wear.
Always use eye protection and gloves—chips fly, and that little core plug can become a projectile. For power tool safety, ensure your drill has a functioning clutch and use a slower speed for larger saws to avoid kickback. When working with materials that generate dust (masonry, tile, chipboard), use a dust mask or, better yet, a dust extraction setup to protect your lungs and keep the workspace clean.
Choosing the right hole saw is a mix of matching diameter, material, and durability to your task and budget. For general DIY, a bi-metal kit from retailers like Screwfix, B&Q, or Toolstation covers most needs. For tile and stone, invest in diamond or carbide-tipped saws from specialist suppliers. Pros who need longevity should lean toward reputable brands sold by RS Components, Cromwell, or brand-authorized dealers. Measure carefully in inches, pick the right arbor and pilot bit, and treat the blades with the same care you’d give your favourite power tool—then you’ll get clean, accurate holes every time.
