- Economy Set of 30 specimens 7/8 x 3/8" electro formed, solid nickel.
- Ideal for use by draftsman, engineers, machinists, etc.
- Each type of surface finish is truly and consistently reproduced, offering a realistic idea of the feel, appearance and texture of the machined components.
- Conforms to S.A.E. and military specifications for visual and tactile inspections.
- Set includes:
Instructions, also graph correlating inch and metric surface finish values plus ISO “N” scale included in set.3 pcs. Flat Lapping 2, 4 and 8 µ" 3 pcs. Reaming 16, 32 and 63 µ" 6 pcs. Grinding 2, 4, 8, 16, 32 and 63 µ" 6 pcs. Horizontal Milling 16, 32, 63, 125, 250 & 500 µ" 6 pcs. Vertical Milling 16, 32, 63, 125, 250 & 500 µ" 6 pcs. Turning 16, 32, 63, 125, 250 & 500 µ"
Surface Roughness Standards Set complete in special wallet
