3M Lapping Film Sheets Grit:4000 Grit these files offer the precision

these files offer the precision control required for the most demanding metalsmithing and instrument work

and fitting of jewelry components

File Type Hand Checkering Precision File Width 19 mm (3/4") Thickness (Max) 5

Bodies are machined from class "A" brass bar stock and built using state-of-the-art manufacturing equipment

0mm) 2B-69 Platinum 1

3M Lapping Film Sheets Grit:4000 Grit these files offer the precision3M Lapping Film Sheets feature tightly graded aluminum oxide mineral coated on a 3 mil polyester film backing for precision, uniform finishing. Designed for controlled scratch refinement, these sheets are ideal for fine metal finishing and detail work when cut into strips and applied to sticks, glass, or other flat tools. Features Tightly graded aluminum oxide abrasive for consistent surface finishes 3 mil polyester film backing for flat, stable