THE POLAND S10A8ZD IS A 3-JAW LATHE CHUCK MANUFACTURED BY POLAND. THIS TOOLING ACCESSORY FEATURES AN OVERALL DIAMETER OF 10 INCHES, A CENTER HOLE DIAMETER OF 3 INCHES, AND A THICKNESS OF 4 INCHES. THE PART NUMBER ASSOCIATED WITH THIS SPECIFIC MODEL IS PUUM S10A8ZD. IT IS DESIGNED FOR VARIOUS TOOLING AND ACCESSORY APPLICATIONS.