Designed to lock on three sides of a hex fastener. Tremendous force can be applied without damaging or slipping off fastener. Adjusts to a range of sizes from 1/4" (7MM) to 9/16" (14MM). Eliminates need for different standard & metric combination wrenches. Trigger release allows one-handed operation.
- Locks on 3 sides of fastener
- 1/4" to 9/16" fasteners
- Trigger release
- One-hand operation
