# HANDTOOLS (NONPOWERED)
> MSHA accident `220052340048` · 08/18/2005 · Martin Marietta Materials, Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion NEC
- **Occupation:** Welder (shop)
- **Activity:** Hand tools (not powered)
- **Injury source:** WRENCH
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 0
- **Mine experience:** 11.23 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc
- **Mine:** [4400045](https://api.ai-analytics.org/mine/4400045)
## Narrative

EMPLOYEE WAS TIGHTENING NUT ON BOLT WITH BOX END WRENCH. THE WRENCH SLIPPED OFF THE NUT CAUSING HIS ARM TO JOLT BACKWARDS CAUSING PAIN IN HIS RIGHT SHOULDER.

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