# MACHINERY
> MSHA accident `220231520002` · 05/22/2023 · Martin Marietta Materials, Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Grinding
- **Injury source:** ABRAS STONE,WHEEL GRINDER
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 0.38 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials, Inc
- **Mine:** [4400045](https://api.ai-analytics.org/mine/4400045)
## Narrative

Employee stated while using a battery operated grinder to cut a bolt off of a belt roller bracket, the grinder recoiled back striking EE's left knee, resulting in a small laceration requiring 6 sutures

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