Busch Fig 1 Round Ball Bur Kit of 19 Pieces-0.5mm to 4.0mm GIA Graduate Jeweler Tools 01 micron — a requirement

01 micron — a requirement for protecting GRS Graversmith

With 51 total holes spanning three profile shapes

Supplied in blank form

Weighing 3 ounces

Comprehensive set of 9 single-hole tips covering a wide range of orifice sizes

Busch Fig 1 Round Ball Bur Kit of 19 Pieces-0.5mm to 4.0mm GIA Graduate Jeweler Tools 01 micron — a requirementBusch burs are the most trusted name in jewelers' burs, known for consistent quality and precision across a wide range of shapes and sizes. This Busch Fig 1 Round Ball Bur Kit contains one each of the most popular ball bur sizes plus two each of three high demand sizes making it an ideal starter set and an excellent way to sample Busch quality across the full size range. This kit is part of the GIA graduate jeweler program, with sizes chosen by GIA's