3M 3/4" Radial Bristle Discs Kit Copper Brass Nickel Silver Sheet & Wire Largest hole: 6 mm ×

Largest hole: 6 mm × 5

helping you quickly determine one of a stone’s most critical optical properties

Model BB1S Function Inside & outside ring engraving Software Magic Art-5 (Windows-based) Alignment Laser pointer

Avoid striking with hardened steel hammers to prevent chipping

3M 3/4" Radial Bristle Discs Kit Copper Brass Nickel Silver Sheet & Wire Largest hole: 6 mm ×3M Radial Bristle Discs deliver long lasting, effective polishing and finishing without the need to add separate polishing compound it's built right into the bristles. Simply stack the individual discs onto a pin hole mandrel and use them like natural bristle brushes. Four to six discs make an excellent brush, giving you a flexible, cool running tool that provides a uniform, easy to control finish while helping prevent heat buildup damage. This 3 4"