Precise 30 Piece Composite Set of Roughness Standards - 4101-0030

• 30 Piece Composite Set of Roughness Standards
• 30 specimens of 7/8" x 3/8" electroformed solid nickel.
• For quick and easy comparisons.
• Conforms to S.A.E and military specifications.
• Supplied in a wallet with instructions and a certificate.
• Each type of surface finish is truly and consistently reproduced with a realistic idea of the feel, appearance and texture of the machined components.
• Weight: 1.2 lbs