1 Pc. Brand New JT 3 x 4.00" (L) Drill Chuck Arbor/Mandrel with MT # 1 Shank Tang for CNC/Manual Lathes Features Manufactured with Chrome Manganese steel Carburized with depth of case 0.7mm Hardened and precision ground Surface hardness HRC 58+/-2 Taper angle : tolerance AT3 .
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