Tools & Home Improvement > Hand Tools > Screwdrivers & Nut Drivers > Screwdriver Sets
LWJ-A103 Multifunctional Screwdriver Set
Brand: Generic / OEM
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Audited BOM: 6 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The low-quality steel (low hardness) in the shafts (COMP-001) leads to deformation (ENG-001), resulting in screwdrivers that bend or break (RMA-001, RMA-006), which is frequently reported by users (REV-001, REV-006).
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