Busch Fig. 156C Hart 90 Degree Burs .70mm-3.70mm Bur Size:2.50mm or otherwise attached to a

or otherwise attached to a wood frame

Each strip operates independently with its own on/off switch

Includes three hallmark stamps: 10K

5mm holes for pavé setting practice

Busch Fig. 156C Hart 90 Degree Burs .70mm-3.70mm Bur Size:2.50mm or otherwise attached to aThese 90 degree hart burs are precision steel burs for cutting, opening, and refining angular seats and details in jewelry work. At the bench, they feel crisp and controlled where a clean edge matters. Manufactured by Busch to ultra high precision tolerances, Fig. 156C hart burs are a reliable choice for stone setting, seat preparation, and fine detail work across a broad range of sizes. Features 90 degree hart bur profile for precise angular cutting