# MACHINERY
> MSHA accident `220071930027` · 07/03/2007 · Specialty Minerals Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** LOWER LEG/TIBIA/FIBULA
- **Days lost:** 0
- **Mine experience:** 2.5 years
## Operator
- **Controller:** Minerals Technologies Inc
- **Operator:** Specialty Minerals Inc
- **Mine:** [0400219](https://api.ai-analytics.org/mine/0400219)
## Narrative

A hydraulic chain wrench was being used to loosen the hammer on an overburden drill.  The threaded portion of the end of the chain wrench broke, swung around, and struck the employee in left shin, causing a small puncture wound.

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