Tools & Home Improvement > Power & Hand Tools > Power Tool Parts & Accessories > Drill Bits > Step Drill Bits
6-Piece HSS Step Drill Bit Set KA-6581
Brand: Generic / OEM
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Audited BOM: 4 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Inadequate heat treatment (ENG-001) makes the HSS steel (COMP-004) brittle, leading to premature breakage (RMA-001) and customer dissatisfaction (REV-001).
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