Also, drills with half an inch chuck will work with larger bits that are half-inch in diameter. Drills with a -inch chuck will accept bits that are -inches in diameter. The first and foremost thing is to ensure that the size of the drill bits shank matches your drill size. Match this row to the 65 thread percentage column. Different drill bit sizes are suitable for different purposes. Look for the 1.00 mm pitch in the charts first column. Table 3: Tap drill size chart for unified gauge threads (inch) Threads per inch: Double thread depth: 50 THREAD: 55 THREAD: 60 THREAD. There are also bits for drilling holes into concrete, plastic, metal, wood, and other materials. The required diameter of the drilled hole is 0.250 - 0.0325 0.2175 inches. You can drill soft materials with any bit, but for hard or brittle materials like acrylic or glass, you might need specially designed bits. You can drill just about anything - it all depends on picking the right bit size. Also, drills with half an inch chuck will work with larger bits that are half-inch in diameter.Ĭhoosing the right size of the drill bit will mean that you will be able to get the hole drilled with the least amount of trouble and without causing any damage to the material, yourself, or the tools. Drills with a ⅜-inch chuck will accept bits that are ⅜-inches in diameter. Why Does the Size of My Drill Bit Matter?ĭifferent drill bit sizes are suitable for different purposes. The drill bit will then spin clockwise to create a hole. To use them, insert the upper end, also known as the shank, into the chuck in the drill. They are attached to the drill, which, when switched on, rotates to power through the workpiece, creating holes of circular cross-section. Drill bits come in various sizes and shapes. A drill bit is a cutting tool used with the drill to create holes in almost any material.
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