# HANDTOOLS (NONPOWERED)
> MSHA accident `220231580001` · 05/31/2023 · Colorado Materials, Ltd
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FOREARM/ULNAR/RADIUS
- **Days lost:** 0
- **Mine experience:** 3.54 years
## Operator
- **Controller:** John R  Weisman
- **Operator:** Colorado Materials, Ltd
- **Mine:** [4104860](https://api.ai-analytics.org/mine/4104860)
## Narrative

Supervisor was using a hammer to remove bearings for the wash plant shaker screen, when the hammer struck a bearing directly. The bearing shattered and some of the splintered pieces struck EE as EE was standing approximately 12' behind the supervisor. One piece struck EE's chin and another embedded in right forearm.

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