# MACHINERY
> MSHA accident `220251570006` · 05/28/2025 · Hibbing Taconite Company
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Observe operations
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 0
- **Mine experience:** 19.42 years
## Operator
- **Controller:** Cleveland Cliffs Inc; US Steel
- **Operator:** Hibbing Taconite Company
- **Mine:** [2101600](https://api.morvs.ai/mine/2101600)
## Narrative

MMGs were prepping belt for splicing PP-P3. MMG picked up 1/4"" die grinder w/buffing wheel, pressed trigger to test prior starting work. The quick connect holding 3"" buffing wheel sheared at the base of the shaft nearly instantly upon rotation, sent buffing wheel/quick connect spinning to the right side of the tool, striking a nearby MMG ~3 ft to top of left-hand knuckle area. 

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