The image shows a black plastic carrying case, open to reveal a set of metal tools inside. The tools, which include various round punches and a wrench, are neatly arranged in molded compartments within the case. A white label with black text is visible on the inside lid of the case, featuring the "Klein Tools" logo.
All components of the Klein knockout punch set, including six punches and dies, two draw studs, and a ratcheting wrench, arranged on a white background.
A marketing image showing all components of the Klein knockout punch set, with callouts identifying the six punch sizes, two draw studs, ratcheting wrench, and case.
The Klein knockout punch set laid out inside its open black carrying case, showing all punches, dies, studs, and the wrench in their molded spots.
The closed black plastic carrying case for the Klein Tools knockout punch set.
A worker holds the two halves of the knockout punch, showing the clean hole created in a metal panel and the split slug in the die.
A worker in gloves and a safety vest uses the Klein ratcheting wrench to tighten a knockout punch on a metal electrical box.
A close-up of the Klein knockout punch cutting through the wall of a metal enclosure, with the ratcheting wrench on top.
The image shows a black plastic carrying case, open to reveal a set of metal tools inside. The tools, which include various round punches and a wrench, are neatly arranged in molded compartments within the case. A white label with black text is visible on the inside lid of the case, featuring the "Klein Tools" logo.
All components of the Klein knockout punch set, including six punches and dies, two draw studs, and a ratcheting wrench, arranged on a white background.
A marketing image showing all components of the Klein knockout punch set, with callouts identifying the six punch sizes, two draw studs, ratcheting wrench, and case.
The Klein knockout punch set laid out inside its open black carrying case, showing all punches, dies, studs, and the wrench in their molded spots.
The closed black plastic carrying case for the Klein Tools knockout punch set.
A worker holds the two halves of the knockout punch, showing the clean hole created in a metal panel and the split slug in the die.
A worker in gloves and a safety vest uses the Klein ratcheting wrench to tighten a knockout punch on a metal electrical box.
A close-up of the Klein knockout punch cutting through the wall of a metal enclosure, with the ratcheting wrench on top.
KLEIN TOOLS

Klein Tools Knockout Set 53732SEN 1/2 To 2 Inch Punch Kit (10 Gauge Mild Steel Slug Splitting Dies 1 Ratcheting Wrench Electrical Panel Box Cutter)

In stock
SKU: 53732SEN
$299.98 USD

Description

Klein promotional logo logout

Klein Tools 53732SEN 1/2" to 2" Conduit Knockout Punch Set with Ratcheting Wrench

The Klein Tools 53732SEN knockout punch set punches precise, burr-free conduit clearance holes from 1/2-inch up to 2-inch trade sizes through 10-gauge mild steel, aluminum sheet, fiberglass, and plastic electrical enclosures. Engineered with hardened alloy steel slug-splitting punches and dies that divide metal knockouts into two separate pieces for fast, tool-free extraction, this manual punching system eliminates stubborn die jamming. Outfitted with a high-leverage 1-inch ratcheting box end wrench, heavy-duty 3/8-inch and 3/4-inch draw studs, and a rugged molded carrying case, it equips commercial journeyman electricians, industrial maintenance technicians, and panel builders with smooth, non-binding knockout punching performance across active jobsites.

Best Used For:

  • Commercial Electrical Panel and Switchgear Knockouts: Punching clean 1/2-inch to 2-inch conduit entrance holes in 10-gauge mild steel enclosures without requiring secondary edge deburring.
  • Industrial Control Box and Junction Modifications: Creating accurate raceway pass-throughs in aluminum, fiberglass, PVC, and NEMA-rated weatherproof electrical cabinets.
  • Tight Enclosure and Confined Space Punching: Operating in restricted clearance compartments using the compact 1-inch ratcheting wrench where bulky hydraulic rams cannot fit.

Key Performance & Safety Features

  • Slug-Splitting Punch and Die Geometry: Precision-machined cutting profiles split waste steel slugs in half during the cut for instant, hassle-free slug ejection from the die.
  • Heavy-Duty 10-Gauge Steel Capacity: Hardened alloy tool steel construction easily punches through up to 10-gauge mild steel (0.134" / 3.4 mm) as well as aluminum and fiberglass.
  • High-Leverage 1-Inch Ratcheting Wrench: Premium reversible ratcheting box end wrench accelerates manual drive speed and maximizes mechanical advantage in tight quarters.
  • Six Standard Conduit Trade Sizes: Comprehensive punch and die set accommodates 1/2", 3/4", 1", 1-1/4", 1-1/2", and 2" trade conduit and fitting hole dimensions.
  • Heavy-Duty Threaded Draw Studs: Includes precision-machined 3/8-inch and 3/4-inch alloy steel draw studs engineered to withstand extreme tensile pulling forces.
  • Durable Molded Jobsite Carrying Case: Heavy-duty storage case secures and organizes all punches, dies, draw studs, and the ratcheting wrench for convenient transport.

What's Included

  • (1) 1" Reversible Ratcheting Box End Wrench
  • (6) Knockout Punches: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" Conduit Sizes
  • (6) Slug-Splitting Dies: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" Conduit Sizes
  • (1) 3/8" x 2-5/8" Threaded Draw Stud
  • (1) 3/4" x 4-1/8" Threaded Draw Stud
  • (1) Heavy-Duty Molded Plastic Carrying Case

Technical Specifications

Manufacturer Klein Tools Inc.
Model Number 53732SEN
Product Classification Manual Knockout Punch Set with Ratcheting Wrench
Maximum Cutting Capacity 10-Gauge Mild Steel (0.134 in / 3.42 mm), Aluminum, Fiberglass, Plastic
Conduit Trade Sizes Included 1/2 in, 3/4 in, 1 in, 1-1/4 in, 1-1/2 in, 2 in
Actual Hole Diameters Produced 0.875" (7/8"), 1.115" (1-3/32"), 1.362" (1-11/32"), 1.701" (1-11/16"), 1.951" (1-15/16"), 2.416" (2-3/8")
Wrench Drive Size 1.00 inch Reversible Ratcheting Box End Wrench
Draw Stud Sizes Included 3/8" (0.375 in) Small Stud & 3/4" (0.750 in) Large Stud
Punch & Die Metallurgy Hardened High-Strength Alloy Tool Steel
Slug Ejection Style Slug-Splitting 2-Piece Core Cleaving Design
Overall Package Weight 9.00 lbs (4.08 kg)
Carrying Case Dimensions 12.25 in x 9.50 in x 2.70 in (311.2 x 241.3 x 68.6 mm)
Country of Origin Mexico
Target Substrates Mild Steel, Aluminum, Fiberglass, & PVC Enclosures
Operating Drive Method Manual Mechanical Ratchet Draw Operation

Pro-Tip: When using manual knockout punches on 10-gauge steel enclosures, apply high-pressure cutting grease or anti-seize lubricant generously to the draw stud threads and bearing surfaces before tightening; keeping the threads lubricated reduces rotational friction by up to 50% and protects the draw stud from galling.