Toughness is paramount when drilling into metal because the heat generated can easily spell the end for cheap drill bits. Not so here, as this set from Draper sees the HSS straight shank bits coated with long-testing and tough titanium nitride. They’re likely to last longer, and they will not get lost as they come in a soft-grip plastic case which is clearly labelled, making finding bits and returning them to their correct slot a simple task. It’s also finished in Draper’s trademark blue, making it easier to spot at the bottom of a tool bag. A lot of plastic pots have these built-in drip trays at the bottom. This is great and can help to prevent root rot, but it’s not as good as a drainage hole. Once you’ve chosen your drill bits, it’s time to get to work. Generally speaking, plastic is not very hard to drill. There are a few things to note if you want to get smooth, clean holes. The diameter of the bit head is one of the crucial considerations. Each drill bit’s size is listed as its diameter. More significant drill bits will have more surface area and will bore faster. But you need smaller drills when working on small delicate projects. So, you should know the diameter to have the perfect holes. Is The Diameter Connected with Length? The length of the drill bit concerning its diameter. The longer the drill bit, the more surface area it has to bore into your project. A more extended drill bit will require more time and force to bore through a material, but it will ultimately be faster. FAQs What Type Of Drill Bit Is Best For Plastic?

This process works the same on any kind of pot, you’ll just want a drill bit that will easily drill through each material! Pot type In this section, we’ve reviewed the 6 best drill bits for plastic for sale right now, including drill bit sets. While drilling, apply a lubricant to remove unwanted debris and reduce heat, especially when drilling deeper holes. Lubricants such as WD40, canola oil, or even vegetable oil.As for the actual drilling technique, you want to apply a consistent but firm amount of pressure to the drill, to prevent the bit moving as you drill. Add your plant and fresh soil to the pot. The drainage holes should give it proper drainage, but you can choose to add small pebbles below the soil if you like. Just be sure they are big enough to not fall thru the hole you just drilled! The best solution is to add drainage holes to the bottom of your plant. Many pots come with drainage holes in them, but some do not! Why are drainage holes so important? Now we’ll discuss some key things to consider when buying drill bits for plastic. What types of drill bits are best for plastic?

However, drilling holes in your pot is not the only way to add drainage to a plant pot. Ways to add drainage to a pot: Some people also like to use step drill bits for drilling plastic, to avoid having to change bits around to drill lots of different-size holes. The added benefit of these bits is they can make it easier to start your hole without the need for a countersink bit. What about the different types of plastic? Of course! The material of the bit itself. Most can be made from high-speed steel (HSS), tungsten carbide, or cobalt. You’ll want to make sure you choose a metal that will last long enough to do the job. Does Size Matter? Unlike very hard materials such as masonry or metal, plastic varies in hardness. Softer plastics are easier to drill but even acrylics can be drilled if you use the right bit and drill carefully. While you will need specialised, extra-strong bits for other materials, you can use multi-purpose bits for drilling plastic. Always make sure that you choose high-quality bits, however. Cheap, poor quality twist bits will damage the edges of your holes. You can also use standard HSS bits, which also deliver smoother, more precise results. Multi-purpose bitsAlternatively, you can use a countersink bit to create an initial depression in the plastic. This serves the same purpose as a dowel bit – ensuring that the bit is lined up and does not move as you begin to drill the hole.