Individual ASTM blocks are available in all metal travels.
RAY-CHECK MFG. CO, INC. 0″ thru 3″ FE Individual ASTM Reference Blocks with #2 thru #8 FBH
RAY-CHECK MFG. CO, INC. 0″ thru 3″ FE Individual ASTM Reference Blocks with #2 thru #8 FBH
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