These quality burs are made of superior Tungsten/Vanadium steel. These burs have 3/32” shanks (perfect for use with quickchange flexshaft handpieces. The overall length of the burs is 1-3/4”.This kit features one each of bur sizes1.0, 1.2, 1.5, 1.6, 1.8, 2.0, 2.1, 2.5, 3.0, 3.3, 3.5, & 4.0mmMade in Germany. Panther has earned a reputation for the highest standards in precision tool production in the world. Our burs and tools are manufactured on the most technically advanced computer assisted machinery in existence. Only the finest quality hardened tool steel is used. Each tool is individually hand inspected before leaving the factory. Our highly trained technicians take pride in producing the most exceptional, durable precision burs available anywhere. Once you experience the performance of a Panther bur, you will never accept a substitute. SKU: 77.1497 UPC: 196943870005 Brand: Panther MPN: 77.1497 Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided.H013F