Fowler 1-2-3 Block Set Features include... 31 holes for easy clamping Sold in Matched Pairs Useful in layout & Precision Grinding work Dimensional Accuracy: 0.0002" Very useful in mounting work for precision grinding, layout work, etc. Blocks hardened to 58-60 Rockwell C. Ground to surface finish 6-10 micro inches ONLY 1 Set available at this price!
