2 3/8" Punches | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	For Hole Diameter For Hole Diameter	Show

2 3/8"

	For Hole Diameter For Hole Diameter	Hide

	For Use On For Use On

	Shape Shape

	Round

	For Conduit Trade Size For Conduit Trade Size

	For Pipe Size For Pipe Size

3/4

1 1/4

1 1/2

	Punching Action Punching Action

	Hammer Driven
	Stud Driven

	For Maximum Steel Thickness For Maximum Steel Thickness

1/8"

3/16"

	Material Material

Steel

	Number of Pieces Number of Pieces

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Individual/Set Individual/Set

Individual

	OD OD

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Stud Diameter Stud Diameter

3/4"

	Length Length

7 3/8"

	Stud Length Stud Length

3 3/8"

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11 Products

Hammer-Driven Hole Punches

Strengthened edges cut holes in soft metal. These punches are also known as arch punches.

For technical drawings and 3-D models, click on a part number.

For Use On Brass, Copper, Fabric, Leather, Rubber
For Hole Dia.	Lg.	Material		Each
2 3/8"	7 3/8"	Steel	0000000	0000000

Stud-Driven Round Hole Punches

Create holes in metal, plastic, and fiberglass by using a wrench or driver to draw the punch onto the included stud. Drill pilot holes slightly larger than the size of the stud. These punches are also known as knockout and chassis punches.

Hole Punches
			Stud						Replacement Dies		Replacement Punches
For Conduit Trade Size	For Hole Dia.	For Max. Steel Thick.	Dia.	Lg.	Material	Includes		Each		Each		Each
For Use On Aluminum, Brass, Copper, Fiberglass, Plastic, Steel
2	2 3/8"	1/8"	3/4"	3 3/8"	Steel	Punch, Die, Stud	000000000	0000000	000000000	000000	000000000	000000

Stud-Driven Round Hole Punches for Pipe and Conduit

Hole Punches
				Stud						Replacement Dies		Replacement Punches
For Pipe Size	For Hole Dia.	For Conduit Trade Size	For Max. Steel Thick.	Dia.	Lg.	Material	Includes		Each		Each		Each
For Use On Aluminum, Brass, Copper, Fiberglass, Plastic, Steel
2	2 3/8"	2	1/8"	3/4"	3 3/8"	Steel	Punch, Die, Stud	000000000	0000000	000000000	000000	000000000	000000

Self-Centering Stud-Driven Round Hole Punches

Punch with Die, Stud, and Spacer

Make accurate holes every time. Drill a pilot hole into your workpiece—the center of these punches fits inside the pilot hole to keep cuts aligned. The pilot hole should be slightly larger than the size of the stud. The die’s design splits the punched out plug in two for easy removal. All punches require a hydraulic driver. They are also known as knockout and chassis punches.

For Use On Aluminum, Brass, Copper, Stainless Steel, Steel
For Conduit Trade Size	For Hole Dia.	For Max. Steel Thick.	Material	Includes		Each
2	2 3/8"	1/8"	Steel	Punch, Die, Stud, Spacer	0000000	0000000

8-ton Straight Hydraulic Driver	0000000	Each	0000000
8-ton Right-Angle Hydraulic Driver	0000000	Each	00000000
11-ton Straight Hydraulic Driver	000000	Each	00000000

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

Punch with Die, Stud, and Spacer

Make accurate holes every time. Drill a pilot hole into your workpiece—the center of these punches fits inside the pilot hole to keep cuts aligned. The pilot hole should be slightly larger than the size of the stud. The die’s design splits the punched out plug in two for easy removal. These are also known as knockout and chassis punches. These punches require a hydraulic driver.

For Use On Aluminum, Brass, Copper, Stainless Steel, Steel
For Pipe Size	For Conduit Trade Size	For Hole Dia.	For Max. Steel Thick.	Material	Includes		Each
2	2	2 3/8"	1/8"	Steel	Punch, Die, Stud, Spacer	0000000	0000000

8-ton Straight Hydraulic Driver	0000000	Each	0000000
8-ton Right-Angle Hydraulic Driver	0000000	Each	00000000
11-ton Straight Hydraulic Driver	000000	Each	00000000

Sheet Metal Hole Flaring Dies

10 Pieces

Flared Hole

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. Press a male and female die together using a hydraulic press. When you don’t have access to a hydraulic press or your material won’t fit in a press, bolt the dies together. For making multiple flares quickly, use a hydraulic knockout punch driver. Dies are made of hardened steel for strength and durability.

For Use On Aluminum, Brass, Copper, Stainless Steel, Steel
No. of Pieces	Includes	For Hole Dia.	OD	For Max. Steel Thick.	For Pipe Size		Each
10	5 Male Dies and 5 Female Dies	1 1/8", 1 3/8", 1 5/8", 1 7/8", 2 3/8"	2 3/8", 2 3/4", 3 1/4", 3 3/8", 4 1/4"	3/16"	3/4, 1, 1 1/4, 1 1/2, 2	0000000	0000000