How to Add Grommets to Leather Without a Press

You can add grommets to leather without a bench press by using hand-setting pliers that punch the hole and crimp the hardware. The job succeeds when the hole matches the eyelet or grommet barrel, the leather is within the tool's working range, and the hardware flares evenly on the back. Test the complete setup on scrap leather first.

Match the hole to the hardware barrel, not a similar-looking label. If the pliers will not close with steady hand pressure, stop; forcing them can split the fitting or scar the leather.

Can you install a leather grommet without a press?

Yes. A bench press is useful for repeated production work, thicker assemblies, or hardware that needs matched dies, but many small repairs and craft projects can be completed with the right hand pliers. A handheld setup also takes less bench space and travels easily.

The KingTool 2-in-1 Professional Leather Hole Punch with Grommet Kit combines a rotary punch and an eyelet-setting function. Its five listed punch sizes are 2.5, 3.0, 3.5, 4.0, and 4.5 millimeters. The kit also includes 200 grommets, five spare punch plates, a ruler, a carborundum rod, and a user manual. That makes it a practical option for occasional belt, bag, shoe, canvas, and craft work, provided the chosen hardware and material pass a scrap test.

Eyelet or grommet: what is the difference?

The terms often overlap. An eyelet may mean a small one-piece ring that flares on the back, while a grommet often has a washer. Labels vary, so inspect the parts and follow their diagram. One-piece hardware needs a setter that rolls the barrel without crushing the rim; two-piece hardware needs compatible dies. Add a washer only when the fitting is designed for one.

The Weaver Leather Supply tutorial on how to set an eyelet shows why hardware-specific tools and orientation matter. Treat it as a process reference, then use the instructions supplied with your own pliers and eyelets.

What you need before you start

Gather the leather, matching hardware, pliers, ruler, marking tool, eye protection, and project-matched scrap. The scrap must match the final thickness and number of layers. For belt sizing, read what size hole punch you need for a leather belt before setting hardware.

For projects that start with sheet material, clean cuts make later layout easier. The guide to cutting fabric straight with a rotary cutter and ruler covers alignment and cutting-surface basics. If you work with cardboard or other flexible craft stock, check what electric scissors handle best instead of assuming leather tools suit every material.

How to match the hole to the hardware

The punched hole should accept the barrel without tearing the leather, yet it should not be so loose that the finished eyelet spins. Start by measuring the barrel section that passes through the leather, not the decorative flange. Compare that measurement with the available punch sizes and the hardware maker's instructions.

Punch the smallest plausible test hole in scrap. Insert the barrel gently. If it will not pass without stretching or cutting the edge, move to the next suitable punch. If the hardware wobbles before setting, the hole is too large. The five punch sizes on the KingTool pliers provide options, but the product page does not state that every size is paired with every included grommet. Testing is the honest way to confirm the match.

Also check barrel length. It must extend far enough through the material for the setter to form it, but an overly long barrel may buckle or flare unevenly. Very thick, very soft, heavily layered, or reinforced leather can exceed what ordinary hand pliers handle cleanly.

How to add grommets to leather without a press

1. Plan the location

Mark the center of every hole from a consistent reference edge. Keep enough leather around the hole so the hardware does not sit on a weak, torn, or skived edge. On a row of eyelets, use a ruler and check spacing before punching anything.

2. Make a complete scrap test

Use the same leather layers and hardware planned for the final piece. Punch, insert, set, and inspect one sample. Do not stop after confirming that the barrel fits the hole; the setting step may expose a length or die mismatch.

3. Select and lock the punch

Rotate the punch head until the chosen tube lines up squarely with the anvil. Confirm it is fully indexed. Keep fingers clear of the jaws, place the marked center under the punch, and hold the leather flat.

4. Punch the hole

Squeeze the handles with firm, gradual pressure. Keep the punch perpendicular to the leather so the hole stays round. Release the pliers, remove the cut plug, and inspect the edge. If fibers remain attached, do not tear the plug sideways; correct the cut with the proper tool or make another scrap test.

For broader cutting-tool safety and selection, the guide to utility knives versus box cutters explains why a sharp blade still needs controlled direction and a stable work surface.

5. Insert the hardware

Push the barrel through from the visible side unless the hardware instructions specify another orientation. The decorative flange should sit flat without forcing. Add a washer only when the fitting is designed for one.

6. Align the setting jaws

Switch the pliers to the correct setting position described in the manual. Seat the cap or flange in its matching recess and center the open barrel over the forming side. Misalignment is the usual reason one edge flares while the other collapses.

7. Set it gradually

Squeeze with slow, even pressure. Release and inspect before adding more force. A second controlled squeeze is safer than one violent attempt. Stop if the hardware tilts, splits, folds sharply, or requires excessive force.

8. Inspect both sides

The front flange should remain flat and undamaged. On the back, the barrel should be evenly rolled or crimped without sharp cracks. Tug the surrounding leather lightly. The eyelet should not spin, rattle, or pull through.

The Cedar Park Public Library's page for its makerspace grommet eyelet pliers lists exact material, thickness, direction, and hardware restrictions for that particular tool. Your pliers may differ, but the lesson is useful: never transfer one tool's limits to another.

Troubleshooting uneven or loose grommets

Never try to repair a split metal edge while it is installed. Remove the failed fitting carefully and protect the leather from sharp fragments. A badly enlarged hole may need reinforcement, a larger compatible fitting, or replacement of the affected panel.

Hand pliers versus a bench press

Hand pliers suit occasional repairs, belts, small bags, and pieces that fit comfortably between the jaws. Choose a bench press for long batches, thick layers, large hardware, or more repeatable pressure. If pliers demand straining, added leverage, or repeated crushing attempts, the project has outgrown them.

New DIY users can build safer habits with the beginner tool guide. For a broader household setup, compare the essential hand tools every homeowner should have with the current hand tools collection.

Frequently asked questions

Can I install grommets in thick leather with pliers?

Sometimes, but only when the combined leather thickness, barrel length, and plier capacity are compatible. Make a full scrap test. If the tool will not close with controlled pressure, use matched press dies or ask a leather shop for help.

Should the hole equal the inside diameter of the eyelet?

Not necessarily. Size the hole to the barrel that passes through the leather and follow the hardware instructions. The finished inside opening does not by itself tell you which punch to use.

Why does my eyelet keep spinning?

The hole may be oversized, the barrel may not have flared enough, or the material may be too thin for that hardware. Replace the fitting rather than squeezing a damaged one repeatedly.

Can I reuse a badly set eyelet?

No. Once a metal barrel has split, folded, or deformed, discard it. Reusing it can leave sharp edges and an unreliable hold.

Finish the first one on scrap, not the project

Adding grommets to leather without a press is straightforward when you match the hole, hardware, material, and setting jaws. The scrap test is the step that saves the finished piece. It reveals size and pressure problems before they become permanent.

Review the specifications and current availability of the KingTool 2-in-1 leather hole punch and grommet kit if your projects fit its listed punch range. For more practical project planning, browse the Tool Tips & Guides hub.