Another use of reamed holes is to receive a specialized bolt that has an unthreaded shoulder - also called a shoulder bolt. This type of bolt is commonly used to replace hot peened rivets during the seismic retrofit of structures. The blades are either removable or not. With a removable blade, you can just replace the blade when it’s too dull to continue reaming. A fixed blade is not easy to change but it will also last much longer than its counterpart with interchangeable blades.

A tobacco pipe reamer is used to clean the inside of a tobacco pipe. This is done by removing any built-up resin and tars from the walls of the pipe. It also helps to maintain the correct diameter of the smoking pipe so that it functions optimally. A bent reamer has a curved shaft and is used to clean the crevices of the pipe. This type of tobacco pipe cleaner is particularly useful for removing build-up from stem and shank. The most commonly used woods for tobacco pipes are briar, cherry, and maple. These are all hardwoods with a relatively low moisture content, which makes them good for smoking.The choice between smoking a pipe or cigarettes are often compared in the media. While some people enjoy both, there are several factors to consider when choosing either one over the other that may influence your decision. You will need a tamper, scraper, knife, and reamer, these are the basic pipe smoking accessories. Pipe tools come in many different shapes, sizes, and finishes with different prodders, pokers, scrapers, and cutters.

A hand reamer has a longer taper or lead in at the front than a machine reamer. This is to compensate for the difficulty of starting a hole by hand power alone. It also allows the reamer to start straight and reduce the risk of breakage. The flutes may be straight or spiral. Remember that not all tobacco pipes are created equal – so don’t assume that your favorite wood will be okay for someone else’s pipe! You can still share your opinion on what you think makes a good smoking experience though! Can you ruin a tobacco pipe? National and international standards are used to standardize the definitions and classifications used for reamers (either based on construction or based on method of holding or driving). Selection of the standard to be used is an agreement between the supplier and the user and has some significance in the design of the reamer. In the United States, ASME has developed the B94.2 Standard, which establishes requirements methods for specifying the classification of reamers. [8] See also [ edit ] For production machine tools, the shank type is usually one of the following: a standard taper (such as Morse or Brown&Sharpe), a straight round shank to be held by a collet, or a straight round shank with a flat for a set screw, to be held by a solid toolholder. For hand tools, the shank end is usually a square drive, intended for use with the same type of wrench used to turn a tap for the cutting of screw threads. During the process of reaming friction causes the part and the tool to heat up. Proper lubrication cools the tool, which increases the life of the tool. Another benefit of lubrication includes higher cutting speeds. This decreases production times. Lubrication also removes chips and contributes to a better workpiece finish. Mineral oils, synthetic oils, and water-soluble oils are used for lubrication and applied by flooding or spraying. In the case of some materials only cold air is needed to cool the workpiece. This is applied by air jet [6] or vortex tube. [7] Work Material

Price is also a consideration for many people. Some reamers are very affordable while others carry higher price tags due to their materials or performance features (such as interchangeable blades). Finally, consider how often you will need to use the reamer. If you only clean your pipes every few months, then a less expensive option may be all you need. A machine reamer only has a very slight lead in. Because the reamer and work piece are pre-aligned by the machine there is no risk of it wandering off course. In addition the constant cutting force that can be applied by the machine ensures that it starts cutting immediately. Spiral flutes have the advantage of clearing the swarf automatically but are also available with straight flutes as the amount of swarf generated during a reaming operation should be very small. If you are looking to clean the inside of your metal piping, then a pipe reamer is an ideal choice. Like other cutting tools, there are two categories of materials used to build reamers: heat treated and hard. Heat treated materials are composed by different steels, most notably plain carbon (unalloyed, considered obsolete today) and high-speed steels. The most common hard material is tungsten carbide (solid or tipped), but reamers with edges of cubic boron nitride (CBN) or diamond also exist. [6]