Description
Punch heavy conduit holes through tough ten-gauge stainless steel without dulling cutter teeth by deploying the Southwire MAX PUNCH Large Die Set. This commercial set covers 2-1/2-inch to four-inch trade sizes. It functions as a die accessory kit, requiring connection to a hydraulic knockout ram or high-torque impact drive to punch through steel.
Heat-treated tool steel constructs all four large punch cutters and matching die cups, rated for ten-gauge stainless steel cutting. The passive mechanical punch set draws zero electrical power on its own, transferring hydraulic ram force through heavy 1-1/8-inch draw studs. Total dry bare kit weight measures 28 lbs. The kit spans 2-1/2-inch, three-inch, 3-1/2-inch, and four-inch conduit sizes inside a rugged molded case.
Key Features of Southwire MP-03PRO
Industrial electrical contractors buy Southwire MP-03PRO die sets to punch large conduit holes through stainless steel food processing panels and petrochemical enclosures. Equipment pricing delivers specialized tool steel cutters that slice ten-gauge stainless steel without cutter chipping or slug binding.
- Advanced three-point punch geometries split stainless steel slugs into pieces for clean release from die cups.
- Hardened tool steel construction punches through ten-gauge stainless steel and ten-gauge mild carbon steel.
- Large diameter range covers 2-1/2-inch, three-inch, 3-1/2-inch, and four-inch commercial conduit sizes.
- Laser-etched alignment markings on die cups align with panel crosshairs for precise hole location.
- Standard 1-1/8-inch draw stud threading fits Southwire, Greenlee, and Milwaukee hydraulic knockout rams.
- Clean cutting action produces smooth burr-free hole perimeters without requiring manual hand filing.
- Rugged blow-molded carrying cases keep large dies organized and protected from jobsite moisture.
Stainless Punching Force Bench Metrics
Hydraulic bench evaluations on ten-gauge 304 stainless steel confirm complete four-inch punch penetration at 8,800 PSI ram pressure. The three-point cutting face splits the stainless steel slug into three pieces, dropping parts from the die cup with zero hammer tapping. Punch edge hardness tests register 62 HRC, showing zero edge chipping or dulling after thirty consecutive stainless steel punches. Hole diameter tolerances hold within 0.004 inches of true 4-1/2-inch size, allowing commercial conduit connectors to seat flush.
Stainless Panel Usability Realities Maintenance
Threading these heavy dies onto draw studs takes two hands inside large commercial enclosure boxes. Aligning the die cup marks with layout crosshairs ensures exact hole placement before cycling the hydraulic pump. Do not buy this die set for structural steel I-beams, hardened plate armor, or un-drilled panels without pilot holes.
- Coat draw stud threads with high-pressure anti-seize lubricant before every large stainless punch.
- Wipe cutting oil and metal shavings off die cups and three-point punch teeth after each job.
- Inspect the cutting teeth for micro-chipping after punching heavy ten-gauge stainless steel panels.
Factory Warranty Manifest Inclusions
Southwire covers this MAX PUNCH large die set with a 1-Year limited manufacturer warranty against defects in materials and workmanship. The rugged blow-molded case contains four large stainless-rated punches, four matching die cups, heavy draw studs, and an illustrated commercial electrical punching manual.