Some Quick Pointers On Choosing The Right Drill Bit For The Task-foxpro6.0免费下载

Home-and-Family When it is time to bore a hole, a drill bit attached to the end of a power drill is often the most efficient method. Bits need to be selected to match both the job and the material. While there are special types that do not fall into traditional measuring standards, most are made in either standard or metric sizes. Most bits are used to make round holes, but some of the special ones create various shapes. The most .mon type in use today is the twist bit. It can be used to bore holes in metal, wood, and plastic depending on the angle and fluting of the bit. Twist bits are .monly available in many sizes, from the tiny ones with a diameter of about two thousandths of an inch to those with a diameter approaching four inches. Lengths for home use can reach almost forty inches. Many people use center and spotting types interchangeably, but they actually are intended for different purposes. Center bits are often used to create starter holes, but are intended to produce indentations so the material can be mounted on lathes. Spotter bits, on the other hand, are intended for use when a larger bit is going to drill the actual hole. When the job calls for enlarging a hole that already exists, core or reamer bits can be used. The choice is determined by how much the hole needs to be enlarged. Reamers should be used when only a small increase is needed, while cores should be used when much more material must be removed. A dowel or brad point bit is a popular choice when working with wood or plastic. While similar to twist bits, they typically make a cleaner hole than twist styles. This is because fibers can pull instead of offering a neat cut. These bits are also sometimes called lip and spur bits. Paddle or spade bits are often used with wood, although they can cause splintering when exiting. They are made almost entirely for hand drills. Woodworkers often prize them because they can produce a neater hole than most twist bits. One type that is very popular with construction workers is the speed or step bit, also called a Unibit. These can drill holes in numerous sizes, eliminating the need to switch bits for each new task. They work with plywood, particle board, sheet rock, and many more materials. A masonry bit looks a good deal like a twist bit, but is made to be used with a power hammer drill. The hammering action helps shatter the material at the bit tip, making it easier to pe.rate. They are made in a vast range of lengths and sizes. A bell hanger bit is often used with a portable electric drill for plumbing or electrical jobs. They are sometimes referred to as installer bits. They have a hole in their tips, and once the hole has been drilled, they can be used to snag wiring in the wall to pull it through the hole. Choosing the correct size and type of bit for the task that needs to be done can make the job easier and produce better results. Some jobs may require that you put away your power drill and resort to old fashioned methods. Luckily, however, these tasks are few and far between. About the Author: – – – – – – – – – – 相关的主题文章:

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