# HANDLING OF MATERIALS
> MSHA accident `220252660011` · 09/10/2025 · Cantera Carraizo Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Drill operator
- **Activity:** Machine maintenance
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FINGER(S)/THUMB
- **Days lost:** —
- **Mine experience:** 0.54 years
## Operator
- **Controller:** Alfonso M  Diaz Jr
- **Operator:** Cantera Carraizo Inc
- **Mine:** [5400019](https://api.ai-analytics.org/mine/5400019)
## Narrative

Track drill operator during operation, finds the drill bit has been obstructed with mud, EE unscrews the drill bit to use a thin shaft to pierce the obstructed drill bit shaft, but was not aware than in the process of removing the drill bit, the shaft also unscrewed. While cleaning the drill bit shaft, the shaft came undone and pinched EE's right index finger.

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