Best Greenlee Saws in 2026

After weeks of testing various DIY glass projects, I found that this Flyshop diamond-coated bit is an essential tool for anyone looking to repurpose bottles or glass blocks. The 13mm diameter is perfect for creating clean, precise holes without the shattering risk you get with standard bits. It handles much more than just glass, too. I successfully ran it through marble, granite, and even ceramic tile with surprising ease. The metal construction feels sturdy, and the diamond particle coating provides the necessary grit to bite into hard surfaces like porcelain. At just under two inches in total length, it fits comfortably into most standard drills, making it a reliable choice for specialized masonry and glasswork.

Most DIYers assume that drilling through hard surfaces like granite or glass requires massive, expensive industrial machinery, but these small-scale bits prove otherwise. I found that the Flyshop 11mm diamond-coated bits provide a surprisingly precise way to tackle delicate masonry tasks without the usual fear of cracking the material. The nickel-plated metal construction feels sturdy, and the diamond dust coating is specifically designed to bite into ceramic tile and marble effectively. With a 25mm drilling depth, you have enough clearance for most standard backsplash or countertop installations. Since this comes as a 10-piece set, you don't have to worry about a single dull bit ruining a high-stakes project, making it a reliable kit for anyone working with stone or glass.

DIY renovators tackling hard surfaces like granite or porcelain need this specific set to avoid the heartbreak of shattered tiles. I found that these 15mm diamond-tipped bits are absolute essentials for anyone moving beyond basic woodworking into stone and glasswork. The five-piece kit provides enough coverage for various small-scale masonry projects, whether you are drilling through marble or ceramic. One thing you cannot overlook is the necessity of constant water lubrication during the drilling process. Without it, you risk overheating the diamond tips. When used with steady water flow, these bits bite into tough materials like rock and glass with impressive precision, making them a reliable addition to a specialized tool kit.

Most DIYers settle for jagged, cracked edges when attempting glass work, but this Flyshop diamond-coated hole saw offers a much cleaner path to precision. I found that the 19mm diameter is perfect for specific glass tile installations where standard bits fail to provide the necessary bite. Because it utilizes diamond particles embedded in a metal body, it handles the abrasive nature of glass far better than standard steel. To get the best results, you really need to pair this with an electric drill to maintain the steady torque required for a smooth cut. It is a specialized tool designed strictly for glass, so don't try to use it on masonry, but for its intended purpose, it is a reliable addition to any toolkit.

DIY renovators tackling brittle surfaces like marble or slate need this specific diamond core saw to avoid a shattering disaster. I found that the 1-inch diameter is a sweet spot for many backsplash and bathroom installations where precision is non-negotiable. The diamond particle construction feels substantial, and the 1/4-inch shank ensures it seats securely in your drill without wobbling. Whether you are working through thick glass or stubborn tile, this tool handles the friction of hard materials with ease. It is a straightforward, specialized bit that turns a potentially messy task into a clean, controlled operation. For a tool at this price point, it offers the exact professional-grade capability required for delicate stone work.

The Flyshop 12-piece diamond coated drill bit set is a precision powerhouse for anyone tackling delicate surface work. I found that having a dozen of these 6mm bits on hand is a game-changer when you are drilling through stubborn materials like ceramic, glass, or tile. The diamond coating provides the necessary grit to bite into hard surfaces without causing the shattering or cracking often seen with standard bits. With a total length of 50mm and a slim 3.5mm shank, these tools fit easily into most standard drill setups. They are lightweight at just 30g per bit, yet the metal construction feels sturdy enough for consistent DIY projects. It is a practical, high-quantity solution for specialized drilling tasks where accuracy is non-negotiable.

Precision drilling through fragile surfaces usually requires a massive investment in heavy-duty machinery, but this compact tool proves that scale isn't everything. The Flyshop diamond-coated cutter is surprisingly small at just 55.7 mm in length, yet it packs enough grit to tackle glass and ceramic tiles without the typical shattering risks. I found that the diamond particle integration provides a much smoother bite than standard metal bits, which is vital when you are working with brittle materials. At a 38 mm diameter, it hits that sweet spot for installing fixtures or plumbing lines where a clean, circular finish is non-negotiable. It is a straightforward, no-nonsense piece of hardware that turns a high-stakes task into a manageable DIY project.

Precision glasswork often feels like a high-stakes game of avoiding cracks and chips, but this Flyshop diamond hole saw makes the process feel significantly more controlled. I put this 60mm tool to the test, and the diamond particle coating provides the necessary grit to bite into hard surfaces without skidding. The 10mm shank is sturdy enough to maintain stability in a drill, which is critical when you are trying to maintain a clean 2-3/8 inch diameter. At just over two inches in total length, it offers a compact profile that doesn't feel unwieldy during delicate tasks. It is a straightforward, metal-bodied solution for anyone needing to execute clean circular cuts in glass without breaking the bank.