The Porta Punch from CST makes quick work of punching holes I-beams. Available at Trick-Tools!

Electric Hydraulic Hole Puncher - Up to 1/4" thick Steel Plate

Portable Hydraulic Punching Machine | High Speed Drilling | Angle Shearing | 99971686415 #machine

"Power in Your Hands! Electric Hydraulic Hole Punching Tool in Action!" #shorts

Portable hydraulic puncher MHP 20,punch upto 6mm thickness steel plate,upto 20.5mm round hole

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Precision Power: Cordless Hydraulic Hole Punch for Heavy Metal #tools #tips #tricks #how #diy #metal

Revolutionary! Portable Punching Machine That Makes Metalwork Easier

VEVOR electric hydralic pump & punch is a beast for punching holes in steel and other material.

Diamond Portable Punching Machine

battery hydraulic hole puncher #tools, Hydraulic hole punching machine

Hydraulic Punch Tools MHP-20 20mm Electric Hydraulic Puncher Hole Machine