Busch Fig 156C Hart 90 Degree Burs Kit of 31 Pieces-0.70mm to 4.0mm Quatro among the highest of any

among the highest of any cutter in its class

74 mm on the smallest setting to 6

Each stone is unique — color and character will vary

USA sizes 1–16 in half sizes

Handle with care—hard wire is delicate despite its rigidity

Busch Fig 156C Hart 90 Degree Burs Kit of 31 Pieces-0.70mm to 4.0mm Quatro among the highest of anyBusch Fig. 156C (European Fig. 414) 90 hart burs are among the most widely used bearing and seat cutting burs in professional jewelry work. This comprehensive kit includes one bur in each size from 0. 70 mm through 4. 00 mm, providing precise, uniform cutting performance across a broad range of stone setting applications. Features Complete size range from 0. 70 mm to 4. 00 mm 90 hart (bearing cutter) profile for accurate seat cutting Made from