Stanley IW16350 Underwater Hydraulic 1" Impact Wrench

The Stanley IW16350 Hydraulic Underwater Impact Wrench (IW16 series) is a high-performance hydraulic tool built for demanding underwater fastening applications encountered in marine construction, salvage, offshore maintenance, and commercial diving. Featuring a 1-inch square drive and a robust Stanley integral Hyrevz gear motor, this underwater impact wrench delivers adjustable impact intensity from approximately 500 to 2,500 ft-lbs (680–3400 Nm) of torque to efficiently tighten or loosen bolts and nuts in submerged environments.

Constructed for reliability and ease of use, the IW16350 incorporates a rugged swing-hammer impact mechanism that provides effortless servicing and reduced torque feedback to the operator. The tool includes a variable forward/reverse control and a feathering on/off valve for fine power modulation, enhancing precision during repetitive underwater tasks. Its ergonomic “D”-style grip and assist handle are designed for gloved operation, while the cast-in lifting eye simplifies handling and deployment. Compatible with a range of hydraulic circuits, this impact wrench is a go-to choice for professional divers and underwater technicians tackling medium to heavy-duty bolting jobs.