# MACHINERY
> MSHA accident `220253360018` · 11/25/2025 · Montana Resources, LLC
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Drill helper
- **Activity:** Grinding
- **Injury source:** ABRAS STONE,WHEEL GRINDER
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 0.69 years
## Operator
- **Controller:** Montana Resources Inc
- **Operator:** Montana Resources, LLC
- **Mine:** [2400338](https://api.ai-analytics.org/mine/2400338)
## Narrative

On drill 304, drill crew was tripping out tooling and preparing to remove the drill bit.  The bit had been welded to the collar and the driller was using a handheld grinder to cut through the welds.  As the grinder broke thru the welds, the grinding disc failed and a fragment struck a the driller on the finger causing a laceration.  

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