Anytime Tools 1-2-3 Blocks Matched Pair Hardened Steel 23 Holes (1"x2"x3") 123 Set Precision Machinist Milling
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<b>[Product Information]</b><br>
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<li>MATCHED PAIR, Professional Quality Tool</li>
<li>Precision ground Steel and Case Hardened on all six sides</li>
<li>Squareness on all sides within 0.0001"</li>
<li>Surface finish from 6 to 16 microinches</li>
<li>23 through holes (5 tapped 3/8"-16 TPI and 18 plain)</li>
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