Knockout Dies | McMaster-Carr

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For Use On

Conduit Trade Size

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For Maximum Steel Thickness

1/16"

1/8"

3/16"

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Export Control Classification Number (ECCN)

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Compliant with Exemptions

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151 Products

Stud-Driven Round Hole Punches

Stud-Driven Round Hole
Punches for Pipe and Conduit

European Standard Stud-Driven
Round Hole Punches for Conduit

Metric Stud-Driven Round Hole Punches for Conduit

Self-Centering Stud-Driven Round Hole Punches

Metric Self-Centering Stud-Driven
Round Hole Punches for Conduit

Self-Centering Stud-Driven Round
Hole Punches for Pipe and Conduit

Stud-Driven Hole Punch Sets

Stud-Driven Hole Punch Sets
with Straight Hydraulic Driver

The driver supplies eight tons of force to the hole punches in this set to make straight punches.

Stud-Driven Hole Punch Sets with
High-Powered Straight Hydraulic Driver

Create larger holes and make repeated punches with these drivers that supply 11 tons of force to the included hole punches.

Stud-Driven Hole Punch Sets
with Right-Angle Hydraulic Driver

Rotate the angled head of the driver up to 180° to fit it into tight spaces and supply eight tons of force to the hole punches.

Stud-Driven Hole Punch Sets for Pipe and Conduit

Metric Stud-Driven Hole Punch Sets for Conduit

European Standard Stud-Driven
Hole Punch Sets for Conduit

Self-Centering Stud-Driven Hole Punch Sets

Punch conduit up to size 1 1/4.

Self-Centering Stud-Driven Hole
Punch Sets with Hydraulic Driver

The included hydraulic driver allows you to punch conduit up to size 2.

Sheet Metal Hole Flaring Dies

Create flares around already-cut holes in sheet metal up to 3/16" thick to make the edges stronger and more rigid. Also known as dimple dies.

Stud-Driven Round Hole Punches

Stud-Driven Round Hole Punches

Stud-Driven Round HolePunches for Pipe and Conduit

European Standard Stud-DrivenRound Hole Punches for Conduit

Metric Stud-Driven Round Hole Punches for Conduit

Self-Centering Stud-Driven Round Hole Punches

Metric Self-Centering Stud-DrivenRound Hole Punches for Conduit

Self-Centering Stud-Driven RoundHole Punches for Pipe and Conduit

Stud-Driven Hole Punch Sets

Stud-Driven Hole Punch Setswith Straight Hydraulic Driver

Stud-Driven Hole Punch Sets withHigh-Powered Straight Hydraulic Driver

Stud-Driven Hole Punch Setswith Right-Angle Hydraulic Driver

Stud-Driven Hole Punch Sets for Pipe and Conduit

Metric Stud-Driven Hole Punch Sets for Conduit

European Standard Stud-DrivenHole Punch Sets for Conduit

Self-Centering Stud-Driven Hole Punch Sets

Self-Centering Stud-Driven HolePunch Sets with Hydraulic Driver

Sheet Metal Hole Flaring Dies

Sheet Metal Hole Flaring Dies

Stud-Driven Round Hole
Punches for Pipe and Conduit

European Standard Stud-Driven
Round Hole Punches for Conduit

Metric Self-Centering Stud-Driven
Round Hole Punches for Conduit

Self-Centering Stud-Driven Round
Hole Punches for Pipe and Conduit

Stud-Driven Hole Punch Sets
with Straight Hydraulic Driver

Stud-Driven Hole Punch Sets with
High-Powered Straight Hydraulic Driver

Stud-Driven Hole Punch Sets
with Right-Angle Hydraulic Driver

European Standard Stud-Driven
Hole Punch Sets for Conduit

Self-Centering Stud-Driven Hole
Punch Sets with Hydraulic Driver