A knockout punch is a handheld tool used to punch a hole through sheet metals, plastics and other solid materials. A knockout punch consists of a punch, die and screw and can be driven by hand, a ratchet, or with hydraulics.

Knockouts all function similarly. A pilot hole is drilled into the sheet or wall to guide the punch. The die and punch are placed on the opposite sides of the sheet and the screw threaded through. As the screw tightens, the punch cuts the hole. A knockout can also be han- or ratchet-operated to simplify the process. The punch and die are simply squeezed together with one tool, without any mechanical assembly.

Knockouts are used extensively in metalworking applications and for outfitting enclosures. Holes are punched to feed cables into a sealed box or cabinet.

SCSS Series Image
  • Self-centering punch aligns itself on pilot hole
  • Excellent abrasion resistance for punching fiberglass
  • Heavy duty dies and stainless steel draws for longer life
  • No need to draw crosshairs or line up die alignment marks
  • Unique punch profile also spits slugs for easier slug removal
  • Capacities up to 10 gauge stainless steel (refer to individual capacity ratings)
SR Series Image
  • Round standard metal punch units
  • Use with battery-powered, hydraulic, ratchet or manual drivers
  • Performs quick, clean, and accurate holes
Rectangular and Square Punches Series Image
  • Suitable for Hand Hydraulic Punch Driver by Icotek and Other Manufacturers
  • Center Punches for Exact Drilling of Mounting Holes
  • Robust Plastic Storage Case
Rectangular and square punches and dies make it easy to punch holes into stainless steel (V2A versions), mild steel, aluminum or plastics with a max. sheet thickness of 3 mm (V2A: max. 2 mm). Available for cut-outs sizes of 10-, 16-, and 24- multi-pin heavy industrial connectors and also for numerous special cut-outs. Therefore, the punches are suitable for most icotek cable entry systems. Center punches are integrated in the die for exact drilling of mounting holes. The punches are for hydraulic operation only.
720 Series Image
  • Punches keyways or push-button holes
  • Use as a nibbler to make wider or deeper keyways
  • Eliminates time-consuming hand sawing and filing when making keyways
SQUARE Series Image
  • Properly assembled, they will make clean, fast, and accurate holes
  • Use with battery-powered or hydraulic drivers
Slug-Out Series Image
  • Handles Mild Steel and Stainless Steel
  • Handles 10-gauge and 20-gauge
  • Smooth Operating Ratchet
  • Mechanical Slug-out
  • Four Point Design
SP Series Image
  • Die # 43-95
  • Punch # 43-52
  • Automatic stripper
  • Only 6 lbs in weight
This series of the stud punch features a spring loaded sleeve that increases the lift and accuracy of the punch while providing a smoother cutting action. The high leverage design permits punching holes in aluminum studs and mild steel with minimum effort. From the center of the punch to the back of the housing measure 2 inches.
SS Series Image
  • Use with battery-powered, hydraulic, ratchet or manual drivers
  • Unique punch profile also splits slugs for easier slug removal
  • Available in sizes up thru 2.52 inches
  • Uses standard Greenlee dies and draw studs
Round Punches Series Image
  • Suitable with Hand Hydraulic Punch Driver by Icotek or Other Manufacturers
  • Multiple Splitting Punches for Easier Slug Removal / for Easy Punching
Self-centering knockout punches for stainless steel (V2A versions), mild steel, aluminum and plastic walls with max sheet thickness of 3 mm (V2A: max. 2 mm). Punches available for cut-outs PG 16, M16, M20, M25, M32, M40, M50, M63, M75 and M85. Cut-outs for icotek split cable glands and round cable entry plates can be punched. The special cutting geometry of the punch reduces the cutting pressure and therefore the required effort. The punch splits slugs into several pieces (type related)* for easy slug removal. For installation of round switches icotek offers a PG 16 punch with an integrated 3 mm twist protection notch. The punches are designed for manual and hydraulic operation.
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