How to Install Taper Pins

Updated February 21, 2017

A taper pin is used to secure two parts together. Typically. a taper pin is used to secure two sections or sizes of metal together, such as a shaft and universal joint. Installing a taper pin may require enlarging the hole for the taper pin. This is done by using a taper pin reamer. Once the hole for the taper pin has been prepared, you can then install the pin.

Attach the taper pin reamer bit to the power drill. Apply cutting fluid to the end of the reamer.

Insert the reamer into the pin hole. Pull the trigger on the drill and push the reamer slowly into the hole.

Drill for 10 to 15 seconds at a time. Remove the drill, and insert the taper pin to check the depth of the hole. Continue drilling if the taper pin does not slide easily into the hole.

Wipe the inside of the enlarged hole with a clean cloth or rag to remove any metal shavings.

Place the two parts to join together and align the pin holes.

Insert the taper pin into the enlarged hole. Tap on the pin with a hammer until it is flush or even with the surface. If the pin is larger than the hole, you can cut the end off with a reciprocating saw.


Use a larger taper pin reamer bit if the hole is not large enough. If the taper pin has a threaded end you may need to add a nut onto the end.


Wear eye goggles to protect yourself from metal shavings.

Things You'll Need

  • Taper pin reamer bit
  • Power drill
  • Cutting fluid
  • Taper pin
  • Cloth or rag
  • Hammer
  • Reciprocating saw
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About the Author

Cameron Easey has over 15 years customer service experience, with eight of those years in the insurance industry. He has earned various designations from organizations like the Insurance Institute of America and LOMA. Easey earned his Bachelor of Arts degree in political science and history from Western Michigan University.