2pcs Hardened Steel 1-2-3" Blocks 0.0001" Precision Matched Machinist 123 Milling Tool 23 Holes 25-50-75mm block gauge

2pcs Hardened Steel 1-2-3" Blocks 0.0001" Precision Matched Machinist 123 Milling Tool 23 Holes 25-50-75mm block gauge

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