Interchangeable teeth for the NA1K/3 reamer, for flexible bushings with a diameter of 2.50 mm to 5.0 mm, set of 3 pieces. Three-blade reamers are used for quick and easy installation of flexible bushings of all types. After inserting all 3 teeth into the center of the bushing and squeezing the lever, the reamer stretches the bushing in three directions, increasing its inner diameter. This allows us to easily install the bushing on the wire and then place it in the desired location after releasing the lever. To facilitate installation, we recommend using the Hellerine lubricant.