# HANDTOOLS (NONPOWERED)
> MSHA accident `220093410004` · 12/01/2009 · Unimin Minnesota Corp
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion in wielding or throwing objects
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Hand tools (not powered)
- **Injury source:** AXE,HAMMER,SLEDGE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 10.06 years
## Operator
- **Controller:** S C R-Sibelco Nv
- **Operator:** Unimin Minnesota Corp
- **Mine:** [2102836](https://api.ai-analytics.org/mine/2102836)
## Narrative

Employee was using a sledge hammer to loosen rock and felt strain in his lower back.  Employee went to clinic and was placed on modified duty.

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