# HANDTOOLS (NONPOWERED)
> MSHA accident `220021260028` · 04/22/2002 · Martin Marietta Aggregates
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion in wielding or throwing objects
- **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:** UNCLASSIFIED,NOT DETERMED
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** —
- **Mine experience:** 4.38 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Aggregates
- **Mine:** [3300096](https://api.ai-analytics.org/mine/3300096)
## Narrative

WHILE TIGHTENING WEDGES IN A SYMONS 5 1/2 FT STANDARD CONE CRUSHER EE USED A 20 BLS SLEDGE HAMMER. UPPER MUSCLES WERE SORE THE NEXT DAY.

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