3/8" Punches | McMaster-Carr

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Punching Action

Hammer Driven

Hand Driven

System of Measurement

Hole Diameter

Shape

For Use On

Sold As

Pilot Diameter

Material

Container Type

For Maximum Steel Thickness

1/64"

Length

4 1/2"

4 5/8"

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

DFARS Specialty Metals

REACH

Handle Material

Performance

Finish

For Use With

Grommet Trade Size

Grommet Washer Type

Application

Tool Type

53 Products

Economy Hammer-Driven Gasket and Washer Hole Punch Sets

Punch clean holes in two strikes to create gaskets and washers without the setup time of a drill press or arbor press. This set includes common ID and OD sizes for a wide range of sealing and cushioning applications. Steel punches cut through brass, cork, fabric, leather, plastic, and rubber. Individual replacement punches are available to keep the set complete as punches wear.

	For Hole Dia.	Material	Container Type		Each
For Brass, Cork, Fabric, Leather, Plastic, Rubber



	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	3430A12	000000

Replacement Punches

For Hole Dia.	Material		Each
1/4"	Steel	3430A211	00000
5/16"	Steel	3430A212	0000
3/8"	Steel	3430A213	0000
7/16"	Steel	3430A214	0000
1/2"	Steel	3430A215	0000
9/16"	Steel	3430A216	0000
5/8"	Steel	3430A217	0000
3/4"	Steel	3430A218	0000
7/8"	Steel	3430A219	0000
1"	Steel	3430A221	00000

Hand-Driven Hole Punch Sets

This set includes all six sizes of our individually sold hand-driven hole punches plus a tool to remove punched out material. Turn the handle of these punches while pushing down to punch holes in cork and rubber. Also known as cork borers, these tools have precision-ground edges that can be sharpened.

	For Hole Dia.	Lg.	Material	Handle Material		Each
For Cork, Rubber



	6 Punches, Material Removal Tool	3/16", 1/4", 5/16", 3/8", 7/16", 1/2"	4 1/2"	Zinc-Plated Brass	Plastic	6122A12	000000

One-Step Hammer-Driven Gasket and Washer Hole Punch Sets

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

	For Hole Dia.	Material	Container Type		Each
For Aluminum, Cork, Fabric, Leather, Plastic, Rubber



	10 Punches, Handle	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"	Steel	Plastic Case	33785A51	0000000


	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	33785A11	000000
	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	33785A12	000000

Replacement Punches

For Hole Dia.	Material		Each
1/8"	Steel	33785A21	000000
3/16"	Steel	33785A22	00000
1/4"	Steel	33785A23	00000
5/16"	Steel	33785A24	00000
3/8"	Steel	33785A25	00000
7/16"	Steel	33785A26	00000
1/2"	Steel	33785A27	00000
9/16"	Steel	33785A28	00000
5/8"	Steel	33785A29	00000
3/4"	Steel	33785A31	00000
7/8"	Steel	33785A32	00000
1"	Steel	33785A33	00000
1 1/16"	Steel	33785A34	00000
1 1/8"	Steel	33785A35	00000
1 3/16"	Steel	33785A36	00000
1 1/4"	Steel	33785A37	00000
1 5/16"	Steel	33785A38	00000
1 3/8"	Steel	33785A39	00000
1 7/16"	Steel	33785A41	00000
1 1/2"	Steel	33785A42	00000
1 5/8"	Steel	33785A43	00000
1 11/16"	Steel	33785A44	00000
1 3/4"	Steel	33785A45	00000
1 7/8"	Steel	33785A46	00000
2"	Steel	33785A47	00000

Hammer-Driven Hole Punch Sets

The handle and punch are one complete tool.

	For Hole Dia.	Material	Container Type		Each
For Cork, Fabric, Leather, Rubber



	6 Punches	1/8", 5/32", 3/16", 1/4", 5/16", 3/8"	Steel	Plastic Pouch	3424A41	000000


	For Brass, Copper, Fabric, Leather, Rubber



			5 Punches, 5"-Lg. Awl, 7"-Lg. Snips with a 1 3/4" Cut Length	1/4", 3/8", 1/2", 5/8", 3/4"	Steel	Nylon Pouch	3491A11	000000


			7 Punches	1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1"	Steel	Nylon Pouch	3429A11	000000


			For Brass, Copper, Cork, Fabric, Leather, Rubber



					6 Punches	3/16", 1/4", 5/16", 3/8", 7/16", 1/2"	Steel	Plastic Pouch	3507A11	00000

Hammer-Driven Gasket and Washer Hole Punch Sets for Thin Materials

Slide thin sheets of material into the included die block then punch an inner and outer hole to create a shim or washer.

	For Hole Dia.	For Max. Steel Thk.	Material	Container Type		Each
For Aluminum, Brass, Copper, Cork, Fabric, Fiberglass, Iron, Leather, Plastic, Rubber, Stainless Steel, Steel



	9 Punches	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 3/4"	1/64"	Steel	Plastic Case	3472A11	0000000

Hammer-Driven Hole Punches

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

		Each
For Brass, Copper, Fabric, Leather, Rubber







	Round

	3/8"	4 5/8"	Steel	3427A13	000000

Hammer-Driven Small Hole Punches

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

		Each
For Fabric, Leather, Rubber







	Round

	3/8"	4 1/2"	Steel	3424A25	000000

Self-Centering Hammer-Driven Gasket and Washer Hole 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 Hole Dia.	Pilot Dia.	For Max. Steel Thk.	Material	Container Type		Each
For Aluminum, Brass, Copper, Cork, Fiberglass, Iron, Leather, Plastic, Rubber, Stainless Steel, Steel



	9 Punches, 8 Pilots	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 3/4"	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8"	1/64"	Steel	Plastic Case	3455A71	0000000

Hand-Driven Hole Punches

Turn the handle of these punches while pushing down to punch holes in cork and rubber. Also known as cork borers, these tools have precision-ground edges that can be sharpened.

	Handle Material		Each
For Cork, Rubber







	Round

	3/8"	4 1/2"	Zinc-Plated Brass	Plastic	6122A25	00000

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 Hole Dia.	Material	For Use On		Each



2	3/8"	Steel	Fabric, Leather, Plastic	9611K14	000000

Hammer-Driven Installation Punches for Grommets

These punches set grommets that have an extended-neck washer, a standard washer, or a tooth-lock washer. Strike the punch with a wooden or rawhide mallet. Punch and die are stamped with the corresponding grommet trade size.

	For Hole Dia.		Each
For Standard, Extended-Neck, and Tooth-Lock Grommet Washers



	2	3/8"	9612K28	000000

Quick-Release Hammer-Driven Gasket and Washer Hole Punch Sets

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

	For Hole Dia.	Material	Container Type		Each
For Cork, Fabric, Fiberglass, Leather, Plastic, Rubber



	10 Punches, Handle	1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"	Steel	Plastic Case	3466A17	0000000


	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 1/8", 1 1/6", 1 3/16"	Steel	Plastic Case	3466A18	000000