They have a sharp, twisted tip that helps to cut through metal.

Metal Drill Bits: Metal drill bits are designed for drilling into hard metals.

They have a sharp, pointed tip that helps to prevent the bit from slipping.

Wood Drill Bits: Wood drill bits are designed for drilling into soft woods.There are a variety of drill bits, each designed for a specific purpose. Short bits are generally used for drilling shallow holes, while long bits are used for drilling deep holes. Drill bits can be either short or long, depending on their intended use. The body is the part of the drill bit that does the actual drilling. The shank is the part of the drill bit that is inserted into the drill. When measuring the length of a drill bit, measure from the tip of the bit to the point where the shank meets the body of the bit. It’s important to select the right type of drill bit tip for the job. Using a drill bit that is small can result in a hole that is too small for what you’re looking for while using a drill bit that is too large can damage the material you’re drilling into. When selecting a drill bit, it’s important to choose one that is the correct size for the job. Drill Size Chart (Number and Letter Gauge) Letter gauges are less common, but they range from A (the smallest) to Z (the largest). Number gauges are the most common type of gauge. There are two types of gauges: number and letter. The size of a drill bit is also referred to as its gauge. Drill Size Chart for Number and Letter Gauges 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. Stainless Steel Kreg Pocket-Hole Screws are the ultimate choice for outdoor applications that involve excessive exposure to moisture and corrosive elements.Drill bits come in a variety of sizes, both standard, and metric. These screws feature 3 anti-corrosion layers to help them resist corrosion in wet areas for the long haul. Zinc-coated screws are suitable for use in kitchens and bathrooms.īlue-Kote™ Kreg Pocket-Hole Screws are the best choice for damp or wet applications, including projects for your porch, patio, detached garage, or outdoor areas. They’re recommended for a wide variety of indoor projects that won’t be subjected to significant amounts of moisture. Zinc-Coated Kreg Pocket-Hole Screws are the ones you’ll use for most projects. There’s a Kreg Pocket-Hole Screw for either case. If you’re building a project for outdoor living, though, you’ll want a screw that can withstand the rigors of exposure to the elements. If you’re building an indoor project, your project won’t be subjected to moisture. Next, think about where your project will be used. Will your project live indoors or outdoors? The threads are less aggressive, but there are more of them to ensure great holding power without splitting. For these hardwoods, choose fine-thread Kreg Screws. The aggressive threads tend to tear the wood fibers, resulting in splits in your wood. On the other hand, hardwoods like oak, maple, and cherry are too dense and hard for coarse-thread screws. Coarse-thread screws are also the preferred choice for sheet goods like plywood and MDF.įine-Thread for Hardwoods: Oak, Maple, Cherry, Birch, Ash, Walnut, Mahogany, Hickory Coarse-thread Kreg Pocket-Hole Screws work great for these woods. That means they need a screw with deep, aggressive threads that will bite into those soft fibers. Woods like pine and spruce, for example (known as softwoods), are soft and not very dense. The next question to ask yourself is: What kind of wood you are using to build your project? Softwood, hardwood, or plywood? When you know that, you can choose the correct screw thread type - either coarse or fine thread.Ĭoarse-Thread for Softwoods and Sheet Goods: Pine, Cedar, Fir, Spruce, Poplar, Aspen, Basswood, Butternut, Plywood, Particle Board, MDF, Melamine

Pilot hole drill bit size chart metal