Zirkonzahn® Burs Products Zirkonzahn Burs For ZIRCONIUM, ACRYLIC & PMMA WAX Compatible with Zirkonzahn® Art. No. ZZB0316A ZZB0516A ZZB1012A ZZB2018A Shaft Ø mm 3.0 3.0 3.0 3.0 Diameter Ø mm 0.3 0.5 1.0 2.0 O.A.L.mm 57 57 57 57