# HANDTOOLS (NONPOWERED)
> MSHA accident `220252680001` · 09/17/2025 · Robinson Nevada Mining Company
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (not powered)
- **Injury source:** AXE,HAMMER,SLEDGE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** WRIST
- **Days lost:** 0
- **Mine experience:** 0.08 years
## Operator
- **Controller:** KGHM Polska Miedz S A
- **Operator:** Robinson Nevada Mining Company
- **Mine:** [2601916](https://api.ai-analytics.org/mine/2601916)
## Narrative

The employee was using a sledgehammer to knock out bolts on sag mill liners. During a swing the sledgehammer head slipped off a bolt end causing the employee's right wrist to twist awkwardly which resulted in a sprained right wrist

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*