Jewelers Master GIA Student Bur Kit Forming Block Adjustable sides move horizontally to

Adjustable sides move horizontally to reduce cavity size for smaller pours

and narrow grooves

This is an upper roll only

Replacement drive shaft gear designed for Blue & Silver Economy rolling mills

Jewelers Master GIA Student Bur Kit Forming Block Adjustable sides move horizontally toThis comprehensive master bur kit, widely used by GIA students, brings together four carefully selected Busch bur assortments to cover essential drilling, shaping, and stone setting tasks. From beginner exercises to more advanced jewelry projects, this set provides a versatile foundation of precision bursorganized and ready for bench work. Features Four coordinated Busch bur assortments covering core jewelry applications Includes twist drills, mixed