Tri-Penta™ Wrench

Three everyday underground utility functions in one tool help linemen open transformer and switchgear hardware, access equipment doors, and lift hand-hole lids with fewer tool changes.

Features & Benefits

• Handle three jobs with one tool: Combines a 3/4-inch penta socket, 3/8-inch screwdriver, and integrated hand-hole lid lifter.
• Open compatible transformer and switchgear hardware: The removable penta wrench is designed for 3/4-inch penta-head fasteners.
• Work faster with the Speed Sleeve™: The high-visibility green handle spins freely and is designed to open transformers and switchgear up to 2X faster than standard penta sockets or wrenches.
• Access primary and secondary doors: The built-in 3/8-inch screwdriver gives crews another common transformer-access tool in the same handle.
• Lift hand-hole lids: The integrated lid lifter adds a third everyday underground utility function.
• Built for field use: Heat-treated alloy-steel construction provides durability for regular utility work.

Built for Underground Utility Work

The Tri-Penta™ Wrench brings common transformer and switchgear access functions into one compact utility tool. Its removable 3/4-inch penta wrench, freely spinning Speed Sleeve™, 3/8-inch screwdriver, and integrated lid lifter help reduce tool changes while working underground equipment.

Choose the Right Penta Tool

Choose the Tri-Penta™ Wrench when you want penta-head access, a screwdriver, and a lid lifter in one hand tool. For a penta socket that works with compatible hand or power tools, compare the Penta Socket Driver with Drill Adapter. For dedicated lid lifting, see the Pad Mount Lid Lifter. You can also browse MADI’s complete Sockets & Wrenches collection.

Catalog #TP-1