Durable Alloy Steel Construction: Made from strong and durable alloy steel for long-lasting use. Mechanical Operation: Uses mechanical leverage for quick and efficient tightening and loosening. Open End Design: Features an open end design that allows for easy access to bolts and nuts. Powder Coated Finish: Has a durable powder coated finish that resists rust and corrosion. Trusted MADI Brand: From a trusted brand known for quality tools and equipment. This underground utility wrench combines three everyday functions into one convenient tool. The ¾” Penta Socket opens transformers and switch gears. The addition of a high visibility patent pending Speed Sleeve helps linemen open those transformers and switch gears up to 2X faster than standard penta sockets or wrenches. It also comes with 2 other tools built into the handle – the integrated Lid Lifter lifts hand hole lids and the 3/8” Screwdriver is great for opening secondary or primary doors. Main Uses: Screwdriver – 3/8” screwdriver for opening the primary door on 3 phase transformers Removable Penta Wrench – Designed for opening all transformers & switch gears Hand Hole Lid Lifter – Built-in design for lifting hand hole lids Additional Features: Speed Sleeve – The green handle spins freely to open transformers & switch gears 2X faster Life & Durability – Heat-treated alloy steel Removable Penta Wrench – Designed for opening all transformers & switch gears