Micro Surface Finish Comparator Plate

14-440-2 SPI Micro Surface Finish Comparator Plate Ra M: 0.025-3.2

The SPI 14-440-2 Micro Surface Finish Comparator Plate has the following specifications:

• Measuring Range - AA: 1,2,4,8,16, 32,63,125
• Ra M: 0.025-3.2
• No. Of Specimens: 8
• Matching Method: Surface Grinding

Features:

• Molded into metal frames.
• Lightweight (2.5 oz) in fitted wallets.
• Fits right into pocket - 21/16" L x 5" W overall Size.
• Individual specimens: 5/8" L x 1" W.
• Used by Q,C. inspectors, line supervisors, machinists, draftsmen, designers, etc.
• Wallets contain durable instruction cards allowing user to assess roughness by sight and touch.
• Plates are marked in AA (micro inches), Ra (?m) and Rz as well as "N" numbers.
• All plates conform to SAE and MIL Specs. Manufactured to ANSI-B-46.1-1978.

Micro Surface Finish Comparator Plates:

• 14-440-2 Micro Surface Finish Comparator Plate Ra M: 0.025-3.2
• 14-441-0 Micro Surface Finish Comparator Plate Ra M: 0.025-3.2
• 14-442-8 Micro Surface Finish Comparator Plate Ra M: 0.4- 50
• 14-443-6 Micro Surface Finish Comparator Plate Ra M: 0.4- 50
• 14-444-4 Micro Surface Finish Comparator Plate Ra M: 0.4- 50
• 14-445-1 Micro Surface Finish Comparator Plate Ra M: 0.4-12.5
• 14-446-9 Micro Surface Finish Comparator Plate Ra M: 0.4- 50
• 14-447-7 Micro Surface Finish Comparator Plate Ra M: 0.8-100
• 14-448-5 Micro Surface Finish Comparator Plate Ra M: 0.10-3.2
• 14-449-3 Micro Surface Finish Comparator Plate Ra M: 0.2-6.3
• 14-450-1 Micro Surface Finish Comparator Plate Ra M: 0.05-1.6
• 14-451-9 Micro Surface Finish Comparator Plate Ra M: 0.0125-020