7/8" Hole Punches | McMaster-Carr

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	Shape Shape


Round	Gasket/Washer

	System of Measurement System of Measurement

Inch

	For Hole Diameter For Hole Diameter	Show

7/8"

	For Hole Diameter For Hole Diameter	Hide

	For Use On For Use On

	Punching Action Punching Action

	Hammer Driven
	Stud Driven

	Individual/Set Individual/Set

Individual

Set

	For Conduit Trade Size For Conduit Trade Size

1/2

22 mm

	Material Material

Steel

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

DFARS Specialty Metals
COTS-Exempt

	For Pipe Size For Pipe Size

1/2

	Container Type Container Type

Plastic Case

Plastic Pouch

Nylon Pouch

	For Maximum Steel Thickness For Maximum Steel Thickness

1/64"

1/8"

	Pilot Diameter Pilot Diameter

3/4"

7/8"

1 1/8"

	Stud Length Stud Length

	Stud Diameter Stud Diameter

7/16"

	Length Length

5 1/4"

	For Panel Cutout Diameter For Panel Cutout Diameter

22mm

	For Grommet Trade Size For Grommet Trade Size

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58 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
7/8"	5 1/4"	Steel	0000000	000000

Hammer-Driven Small Hole Punches

Use these punches to make round holes in soft, nonmetallic materials.

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

For Use On Fabric, Leather, Rubber
For Hole Dia.	Lg.	Material		Each
7/8"	5"	Steel	0000000	000000

One-Step Hammer-Driven Gasket and Washer Punch Sets

Attach two punch heads to the handle at the same time to punch a gasket or washer in a single strike.

Punch Sets

For Use On Aluminum, Brass, Copper, Cork, Fabric, Fiberglass, Iron, Leather, Plastic, Rubber, Stainless Steel, Steel
Includes	For Hole Dia.	Material	Container Type		Each
15 Punches, Handle	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4", 7/8", 1", 1 1/16", 1 1/8", 1 3/16"	Steel	Plastic Case	00000000	0000000
25 Punches, Handle	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4", 7/8", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 5/8", 1 11/16", 1 3/4", 1 7/8", 2"	Steel	Plastic Case	00000000	000000

Replacement Punches

For Hole Dia.	Material		Each
1/8"	Steel	00000000	000000
3/16"	Steel	00000000	00000
1/4"	Steel	00000000	00000
5/16"	Steel	00000000	00000
3/8"	Steel	00000000	00000
7/16"	Steel	00000000	00000
1/2"	Steel	00000000	00000
9/16"	Steel	00000000	00000
5/8"	Steel	00000000	00000
3/4"	Steel	00000000	00000
7/8"	Steel	00000000	00000
1"	Steel	00000000	00000
1 1/16"	Steel	00000000	00000
1 1/8"	Steel	00000000	00000
1 3/16"	Steel	00000000	00000
1 1/4"	Steel	00000000	00000
1 5/16"	Steel	00000000	00000
1 3/8"	Steel	00000000	00000
1 7/16"	Steel	00000000	00000
1 1/2"	Steel	00000000	00000
1 5/8"	Steel	00000000	00000
1 11/16"	Steel	00000000	00000
1 3/4"	Steel	00000000	00000
1 7/8"	Steel	00000000	00000
2"	Steel	00000000	00000

Economy Hammer-Driven Gasket and Washer Punch Sets

This set includes common ID and OD sizes to create gaskets and washers in two strikes.

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

Punch Sets

For Use On Brass, Cork, Fabric, Leather, Plastic, Rubber
Includes	For Hole Dia.	Material	Container Type		Each
10 Punches, Handle	1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4", 7/8", 1"	Steel	Plastic Case	0000000	000000

Replacement Punches

For Hole Dia.	Material		Each
1/4"	Steel	00000000	00000
5/16"	Steel	00000000	0000
3/8"	Steel	00000000	0000
7/16"	Steel	00000000	0000
1/2"	Steel	00000000	0000
9/16"	Steel	00000000	0000
5/8"	Steel	00000000	0000
3/4"	Steel	00000000	0000
7/8"	Steel	00000000	0000
1"	Steel	00000000	0000

Quick-Release Hammer-Driven Gasket and Washer Punch Sets

Quickly switch between inner and outer punches to create washers faster than with standard sets.

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

Punch Sets

For Use On Cork, Fabric, Fiberglass, Leather, Plastic, Rubber
Includes	For Hole Dia.	Material	Container Type		Each
7 Punches, Centering Pin, Handle, Punch Cutting Pad	1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1"	Steel	Plastic Case	0000000	0000000
13 Punches, Centering Pin, Handle, Punch Cutting Pad	1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"	Steel	Plastic Case	0000000	000000

Replacement Punches

Material	Choose a For Hole Dia.		Each
Steel	1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"	0000000	000000

Self-Aligning Hammer-Driven Gasket and Washer Punch Sets for Thin Materials

For accurate punching of inner and outer holes, these sets come with pilots that attach to the outer hole punch.

For Use On Aluminum, Brass, Copper, Cork, Fiberglass, Iron, Leather, Plastic, Rubber, Stainless Steel, Steel
Includes	For Hole Dia.	Pilot Dia.	For Max. Steel Thick.	Material	Container Type		Each
4 Punches, 4 Pilots	7/8", 1", 1 1/8", 1 1/4"	3/4", 7/8", 1", 1 1/8"	1/64"	Steel	Plastic Case	0000000	0000000

Hammer-Driven Hole Punch Sets

The handle and punch are one complete tool.

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

For Use On Cork, Fabric, Leather, Rubber
Includes	For Hole Dia.	Material	Container Type		Each
6 Punches	1/2", 9/16", 5/8", 3/4", 7/8", 1"	Steel	Plastic Pouch	0000000	0000000
For Use On Brass, Copper, Fabric, Leather, Rubber
7 Punches	1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1"	Steel	Nylon Pouch	0000000	000000

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 Studs		Replacement Dies		Replacement Punches
For Conduit Trade Size	For Hole Dia.	For Max. Steel Thick.	Dia.	Lg.	Material	Includes		Each		Each		Each		Each
For Use On Aluminum, Brass, Copper, Fiberglass, Plastic, Steel
1/2	7/8"	1/8"	7/16"	3"	Steel	Punch, Die, Stud	000000000	000000	000000000	000000	00000000	000000	00000000	000000

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

Stud-Driven Round Hole Punches for Pipe and Conduit

Hole Punches
				Stud						Replacement Studs		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		Each
For Use On Aluminum, Brass, Copper, Fiberglass, Plastic, Steel
1/2	7/8"	1/2	1/8"	7/16"	3"	Steel	Punch, Die, Stud	000000000	000000	000000000	000000	00000000	000000	00000000	000000

11-ton Straight Hydraulic Driver	000000	Each	0000000
8-ton Right-Angle Hydraulic Driver	0000000	Each	000000
8-ton Straight Hydraulic Driver	0000000	Each	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 Panel Cutout Dia., mm	For Max. Steel Thick.	Material	Includes		Each
1/2	7/8"	22	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	000000
11-ton Straight Hydraulic Driver	000000	Each	000000

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 Panel Cutout Dia., mm	For Max. Steel Thick.	Material	Includes		Each
1/2	1/2	7/8"	22	1/8"	Steel	Punch, Die, Stud, Spacer	0000000	0000000

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

Metric Self-Centering Stud-Driven Round Hole Punches for 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 can be used with any 8- or 11-ton hydraulic driver.

For Use On Aluminum, Brass, Copper, Stainless Steel, Steel
For Conduit Trade Size	For Hole Dia.	For Panel Cutout Dia., mm	For Max. Steel Thick.	Material	Includes		Each
22 mm	7/8"	22	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	000000
11-ton Straight Hydraulic Driver	000000	Each	000000

Hammer-Driven Cutting Punches for Grommets

Punch a hole in your material to prepare for the installation of fabric grommets. Strike these tools with a wooden or rawhide mallet.

For Grommet Trade Size	For Hole Dia.	Material	For Use On		Each
7	7/8"	Steel	Fabric, Leather, Plastic	0000000	000000