Tools & Home Improvement > Hand Tools > Screwdrivers & Nut Drivers > Screwdriver Sets
14-Piece Precision Screwdriver Set H920
Brand: Generic / OEM
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Audited BOM: 14 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 use of low-quality steel (carbon steel) with insufficient hardness (HRC 50-52) for the bits results in rapid deformation and stripping, especially in applications requiring moderate torque or precision, such as electronics and small appliances.
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