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Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"
Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4" Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

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Product details

Management number 221120157 Release Date 2026/05/03 List Price US$154.22 Model Number 221120157
Category
  1. Tools & Home Improvement
  2. Power & Hand Tools
  3. Hand Tools
  4. Punches
  5. Knockout Punches

Gardner Bender four-point knockout punches and dies are designed to punch clean, round holes through 10-gauge mild steel, 12-gauge stainless steel or other soft metals up to .135 inches in thickness. Punches and dies are interchangeable, in any combination, with most brands of knockouts. This kit includes punch, die, drive screw and drive nut to punch a hole diameter sufficient for 4 inch pipe/conduit; actual hole diameter is of 4.545 inches. Additional sizes are available to specifically permit fast and easy installation of electrical conduit and pipe of nominal sizes 1/2" through 4", in all commonly available increments.

  • Four-point punch design allows slug to fall free from the die without splitting, tapping or prying
  • Interchangeable with most tool brands
  • Punches 10 gauge mild and 12 gauge stainless steel
  • Punches hole designed for 4 Inch pipe or conduit
  • Actual hole diameter 4.545 inches
UPC 032076813550
Color Black
Model KOM400
Brand Name Gardner Bender
Unit Count 1 Count
Part Number KOM400
Sheet Count 12
Manufacturer Gary Cooper Publishing House
Material Type Alloy Steel, Stainless Steel
Operation Mode Manual
Pin Hole Diameter 4.55 Inches
Global Trade Identification Number 00032076813550

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

Gardner Bender KOM400 Slug-Out Mechanical Knockout Set, Contractor Punch, Die, Bearing & Drive Screw Set, Conduit Pipe Size Cutting Diameter, 4½" Hole Size, 10 AWG Mild Steel & 12 AWG Stainless Steel, 4"

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