Realized I'd been using the wrong drill bit😅

Hey everyone! I often get asked more about drilling glass, especially after sharing my quick 5-minute success story. It’s easy to feel overwhelmed, and for a long time, I was definitely using the wrong size and type of drill bit (which is probably why it took me forever!). Let's dive deeper into making sure you pick the perfect glass drill bit and use it safely. First off, let’s talk about why a diamond drill bit is your absolute best friend for glass. Unlike regular metal or even masonry bits, diamond bits don't cut in the traditional sense; they grind. Glass is super hard but brittle, so you need that abrasive action to prevent shattering. If you've ever tried using a standard drill bit, you know the frustration – it just slips and scratches, or worse, cracks the glass. That's why switching to a diamond-tipped bit, even a small 6mm or 8mm one for drainage, makes a world of difference. The thought of using the 'wrong size' used to haunt me, and I totally get it! I used to think bigger was better, but for drainage, you mostly need enough for water to escape, not an enormous hole. Choosing the Right Size for Drainage: For succulent planters, I usually opt for a 6mm to 10mm diamond core drill bit. A 6mm (or roughly ¼ inch) is perfect for small jars and doesn't compromise the glass's integrity too much. For larger pots, an 8mm or 10mm might be more appropriate. You want enough space for excess water to drain out efficiently, preventing root rot, but not so big that your soil falls through. The '100 mm' in the OCR probably refers to the length of a drill bit, which is also important – you need one long enough to get through your glass without the drill chuck hitting the surface. Step-by-Step for Flawless Holes: Preparation is Key: Secure your glass jar or mug. A non-slip mat or even a towel can help prevent it from moving. Mark exactly where you want your hole with a permanent marker. Water, Water, Water! This is crucial. As I mentioned in my original post, keep the area continuously wet. I use a spray bottle, or for more control, I'll create a small 'dam' around my mark with plumber's putty or clay and fill it with water. This keeps the bit cool, reduces friction, and flushes away glass dust, which is important for both safety and bit longevity. Start Slow and Angled: Don't press hard! Start your drill at a slow speed, holding the bit at a slight angle (about 45 degrees) to create a small notch. Once it bites, slowly bring the drill upright. This prevents the bit from "walking" all over the surface. Gentle Pressure, Moderate Speed: Maintain light, consistent pressure. Let the diamond do the work. High speed generates too much heat, even with water, leading to cracks. A cordless drill on a lower speed setting is often ideal. Breakthrough Carefully: As you get close to going through, ease up on the pressure even more. The glass can chip or crack easily at the exit point. Once you're through, you can gently deburr the edges with fine-grit sandpaper or a diamond burr tool if needed, but often, with the right technique, the holes are quite clean. Avoiding Common Pitfalls: One common mistake I've seen is using the wrong type of bit (like a regular twist drill or even a masonry bit that might be mistakenly called a "pilot bit" for other materials). These are designed for different materials and will only frustrate you or damage your glass. Another is applying too much pressure or not using enough water – both are recipes for disaster (cracked glass!). I also learned that trying to rush the process never pays off. Slow and steady wins the race when drilling glass. By following these tips, you'll find that drilling glass for your DIY planters isn't daunting at all. It's actually quite satisfying to transform something old into something beautiful and functional with the right tools and a little patience!