# HANDTOOLS (NONPOWERED)
> MSHA accident `220140930032` · 03/27/2014 · United States Gypsum Company
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (not powered)
- **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:** 17.81 years
## Operator
- **Controller:** USG Corporation
- **Operator:** United States Gypsum Company
- **Mine:** [1300433](https://api.ai-analytics.org/mine/1300433)
## Narrative

Employee was in the process of removing a final drive sprocket from a Komatsu PC600 excavator by striking the sprocket with a metal hammer. He hit the sprocket twice and on the third swing a small piece of metal broke off the sprocket striking and embedding in employee's left inside forearm.

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