Berea Hardwoods Bushings 10A are precision round steel pieces designed to slide on the mandrel between mounted pen blanks. These bushings are essential for turning the wood down accurately to the top of the bushing, ensuring the correct wood size is achieved. Each kit includes specific bushings tailored to particular mandrels, with the letter following the bushing number indicating the compatible mandrel type, such as A or B. This makes the Berea Hardwoods Bushings 10A an indispensable tool for woodturners seeking precision and quality in their pen-making projects.