# HANDTOOLS (NONPOWERED)
> MSHA accident `220102290018` · 08/13/2010 · Aggregate Industries West Central Region, Inc.
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck by... 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:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 6.17 years
## Operator
- **Controller:** Holcim Ltd
- **Operator:** Aggregate Industries West Central Region, Inc.
- **Mine:** [2601845](https://api.ai-analytics.org/mine/2601845)
## Narrative

Installing large bull gear on roll crusher at Wash Plant One, using a 8 lb. hammer to strike a hammer wrench to secure the nut that holds the gear. Hammer glanced off wrench and hit left knee.

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