# HANDTOOLS (NONPOWERED)
> MSHA accident `220101950019` · 04/22/2010 · 3M Company
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion NEC
- **Occupation:** Mechanic helper
- **Activity:** Hand tools (not powered)
- **Injury source:** WRENCH
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 21
- **Mine experience:** 29.6 years
## Operator
- **Controller:** Minnesota Mining & Manufacturing Company
- **Operator:** 3M Company
- **Mine:** [4702918](https://api.ai-analytics.org/mine/4702918)
## Narrative

Wrench slipped off the hex nut. When the wrench slipped, the box end of the wrench made contact with the base of the separator. The employee's hand slipped, from the orignal grip position, down the shaft of the wrench at an angle. This resulted in a hyper extension of the thumb on the Employee's left hand.

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