Fretz Progressive Stake F-2A Lining Convex Fluting Stake Burs & Drills Rated for 3–5 year service

Rated for 3–5 year service life in factory use

a 6" file measures approximately 8½" overall from tip to end of tang

Replacement diamond tip for inside ring engraving machines

Supports reliable operation and longevity of your hammer handpiece

Replaceable filter included

Fretz Progressive Stake F-2A Lining Convex Fluting Stake Burs & Drills Rated for 3–5 year serviceThe Fretz F 2A Lining Convex Fluting Stake is the first step in the Progressive Stake sequence, used after initial forming on the F 2 Doming Stake. Designed to begin the process of creating concave flutes, the F 2A establishes gentle, flowing concave curves without bringing the flutes to a sharp edge. This controlled, gradual approach protects the metal and allows the metalsmith to refine form incrementally. The full progression continues with the F