![]() ![]() You want a simple twist drill bit for wood, sometimes with a brad point.įor your reference, we’ve included the following exhaustive drill bit size chart.For masonry projects, you want twist bits with a carbide fin.Here are some guidelines for drill bit types and the materials they align with: Hardwood may need a slightly smaller bit size. ![]() Align the size of the drill bit with the type of material.Measure the screw thread count and diameter.If in doubt, a quick and relatively safe technique is to simply hold a drill bit up to the shank of the screw. Now that you know the factors you need to consider to select the correct drill bit size, it’s time to review what you need to do when selecting your bits. Use the following table as a starting point. Practical Tips for Selecting the Right Drill Bit Size Pilot hole size requirements: The hole size should be the same as or shorter than the screw’s center core diameter.Type of material being drilled: Wood is the most common for household jobs, but you also have metal, tile, porcelain, concrete, and plastic.You need to consider several factors when selecting the right drill bit size for your project. The critical information you need to know for this article is that you need 7/64-inch and 1/8-inch drill bits for softwood and hardwood, respectively.įactors to Consider When Selecting the Right Drill Bit Size Use these drill bits for DIY projects or on a professional work site to complete various building and renovation projects. you can drive or remove Robertson screws with a recess that fits the size of the bit. A specialty bit, known as a pocket hole bit. It is important to understand the basics of drill bits, their sizes, and how they are measured to ensure efficient work when the drill is needed. Metric drill bits are measure in millimeters, while standard drill bits are measure in inches. Fractional sizes are measured in inches, while metric sizes are measured in millimeters. Best for: Drilling angled holes for screws. Drill bits come in a variety of sizes, both standard, and metric. The decimal equivalents of the diameters are shown in both English and Metric units. Of course, choosing the right size makes your job easy and enables it to flow well from step to step. The drill size chart provides a list of standard size drill bits in several measurement systems, including fractional, metric, wire gauge number, and letter. If the pilot hole is too big, the screw won’t stay in if it’s too small, the screw won’t fit, and you may even inadvertently strip the material. For any project involving a drill (and, therefore, drill bits), selecting the bit size that matches the screw size is always crucial. ![]()
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