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Single Ended Countersinks and Reamers

All counter sinks chamfer drilled holes so that fasteners can install flush with the surface of the workpiece, and all reamers make little holes wider, but there are several different types of countersinks and reamers that can be used on different materials as well as for specific desired outcomes. Depending on your application, you may seek a particular type of metal countersink or reamer, a specific angle, a specific number of flutes, a specific finish or some other consideration. As well, keep in mind that some drill bits can also countersink.

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