# MACHINERY
> MSHA accident `220230230019` · 01/12/2023 · Keystone Cement Company 
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Utility man, Shift tech, Service/Dump truck operator
- **Activity:** Hand tools (powered)
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 5
- **Mine experience:** 5.12 years
## Operator
- **Controller:** Elementia Materiales
- **Operator:** Keystone Cement Company 
- **Mine:** [3600125](https://api.ai-analytics.org/mine/3600125)
## Narrative

Miner was installing bolt on frame of conveyor holding head of bolt with right hand. As miner ran nut to tighten with an impact driver, the washer on the head of the bolt pinched miner's right thumb tip against the conveyor frame causing laceration requiring stitches to close. 

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