1/2″ Stub Drill Bit
1/2″ stub drill bit for threaded inserts. A stub bit is best because it won’t “wander” if it hits a tight grain in the wood.
By popular demand, I now offer slip in inserts that use a different size bit. If you have trouble threading in the stoppers, openers or coffee tampers, you will have more trouble threading in a 1/2″ insert.