Surface Roughness Standards Set With 30 Specimens Wallet And Instructions Includes Free Graph Correlating CLA AA And Ra Values ISO N Scale 6 By 3 Inches Overall Size Great For Drafting Rooms And Engineering Labs

Surface Roughness Standards: 30-specimen set in a 6x3 wallet
✔️ 30 nickel specimens, 7/8 in x 3/8 in each, graph, ANSI B-46.1-1985

This surface roughness standards set includes a wallet, instructions, and a free graph correlating CLA, AA, and Ra values on the ISO N scale. Ideal for drafting rooms, engineering labs, and small shops for quick finish comparisons and process confirmation.

✅ 30 specimens, 7/8 in x 3/8 in each
✅ Electroformed solid nickel construction
✅ Includes wallet and instruction sheet
✅ Free graph correlates CLA, AA, and Ra values
✅ ISO N scale markings on the scale
✅ Overall size 6 in x 3 in
✅ SAE and military specifications for visual and tactile inspection
✅ ANSI-B-46.1-1985 compliant

💡 What is a surface roughness standards set used for in engineering drafting rooms and quality labs? A handy reference that standardizes finishes and supports quick decisions.

- Handy for QA inspections and operator training
- Lets you quickly compare finishes using CLA, AA and Ra values
- Helps reduce scrap by guiding finish selection and process choices
- Supports ISO N scale referencing for consistent measurements
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