What a Leather Sewing Awl Does and When to Use It
A leather sewing awl is a hand tool that punches holes through thick leather so you can stitch it by hand without breaking needles or your fingers. Unlike a regular needle, which pushes through fabric, an awl creates the hole first—then you thread a needle through that pre-made opening. This matters because leather is too dense for standard hand-sewing needles to pierce cleanly, and trying to force a needle through risks bending it, splitting the leather, or jamming the needle into your hand.
You use an awl when hand-stitching leather goods: wallets, belts, bag straps, shoe repairs, or leather patches. Machine sewing works for some leather projects, but hand-stitching with an awl gives you control over stitch placement and creates a visible, durable seam that's part of the design. The tool is also useful for leather work where a sewing machine cannot reach—like closing a bag after stuffing it, or stitching around curved edges.
Key Takeaways
- An awl punches a hole through leather before you thread a needle through it, protecting both the leather and your hands from damage.
- Hold the awl upright, position it where you want the hole, and push straight down with steady pressure—do not twist or rock it side to side.
- Mark your stitch line first with a ruler and pencil, then space your awl holes about one-quarter inch apart along that line.
- Use waxed thread and a blunt needle (not a sharp one) to stitch through the pre-punched holes, pulling the thread snug but not so tight that it warps the leather.
- Wear a thimble or leather guard on the hand holding the awl to prevent puncture wounds if the tool slips.
Setting Up Your Work Space and Marking the Stitch Line
Before you touch the awl, prepare the leather and mark where the stitches will go. Lay the leather piece flat on a hard surface—a wooden cutting board, a leather sandbag, or a thick piece of plywood works well. Soft surfaces like fabric or your lap will absorb the awl's force and make the hole ragged or incomplete.
Use a ruler and a pencil or chalk to draw a light line where you want your stitches. For a belt or strap, this line usually runs parallel to the edge, about one-quarter to one-half inch in from the edge. For a seam joining two pieces, mark the line on the piece you will stitch first. Make the line light enough that you can erase it later, or use a chalk pencil that brushes away.
Once the line is marked, use the awl itself to mark the spacing. Hold the awl upright and lightly tap it (or press it) at the first point on your line to make a small indent. Move the awl about one-quarter inch along the line and repeat. These indents act as guides so your holes are evenly spaced and your stitches look neat. Uneven spacing is the most common mistake—it makes hand-stitched leather look sloppy even if the stitches themselves are tight.
Holding the Awl and Punching Holes
Grip the awl like a pencil, with your thumb and first two fingers wrapped around the handle. Your hand should be relaxed—tension makes the awl wander. Position the point straight down on the first indent you made, so the awl is perpendicular to the leather surface. If the awl tilts, the hole will be angled and the needle will not pass through cleanly.
Push the awl straight down with steady, even pressure. Do not twist it or rock it side to side—these motions enlarge the hole and can split the leather. For thin leather (like garment leather or suede), a firm push is usually enough. For thick leather (like vegetable-tanned leather or bridle leather), you may need to push harder or use a slight twisting motion only at the very end, once the point has broken through. The goal is a clean, round hole just large enough for your needle to pass through.
If the awl gets stuck, do not force it. Pull it straight back out, check that the point is not bent, and try again with slightly more pressure or a small rocking motion. If the leather is too thick, you may need a larger awl or a different tool—a pricking iron (which has a flat, chisel-like edge) works better for very thick leather.
Protecting Your Hands While Working
An awl is sharp and moves toward your hand with force. Wear a leather thimble or a leather palm guard on the hand that holds the awl. These are not the metal sewing thimbles used for needles—they are thick leather pieces that cover your palm or fingers and protect against puncture wounds if the awl slips.
The hand holding the leather should also be protected. Wear a glove or wrap a cloth around your fingers so that if the awl breaks through the leather faster than you expect, it does not go into your hand. Many leather workers use a leather sandbag or stitching pony to hold the work instead of their hands, which removes the risk entirely. A sandbag is a small pillow filled with sand that you can position under the leather; a stitching pony is a clamp that holds the leather upright so both your hands are free.
Threading and Stitching Through the Pre-Punched Holes
Once all your holes are punched, thread a needle with waxed thread. Waxed thread is stronger than regular thread and slides through leather more smoothly. Use a blunt needle (also called a tapestry needle), not a sharp sewing needle—the blunt end will not catch on the leather fibers as you pull the thread through. Cut about 18 to 24 inches of thread and thread it through the needle's eye.
Start at one end of your stitch line. Push the needle through the first hole from one side of the leather, then pull it through until about 2 inches of thread remains on the starting side. Go back through that same hole from the other side, creating a small loop on the first side. This anchors the thread so it will not pull out. Then move to the next hole and stitch forward in a straightforward running stitch—in through one hole, out through the next, in through the next, and so on.
Pull the thread snug as you go, but not so tight that it warps the leather or puckers the seam. The leather should lie flat and the thread should sit in the holes without bulging. If you are stitching two pieces of leather together, make sure both pieces stay aligned as you stitch—leather can shift if the thread is too loose, and it will wrinkle if the thread is too tight.
Finishing the Seam and Caring for Your Awl
When you reach the end of the stitch line, anchor the thread on the back side by making a small loop and pulling the needle through it twice. This creates a knot that will not slip. Trim the excess thread close to the leather. If the thread is visible and you want a neater look, you can use a needle to tuck the end under a nearby stitch on the back side before trimming.
After you finish stitching, erase any pencil marks with a regular eraser or a kneaded eraser (which works better on leather). If you used chalk, brush it away with a soft cloth. The leather is now ready to use.
Store your awl in a dry place, away from moisture. Wipe the point clean after each use—dried leather particles can dull it. If the point becomes dull or bent, you can sharpen it with a fine whetstone or have it professionally sharpened. A dull awl will tear leather instead of punching clean holes, so keep it sharp. Most leather awls last for years with basic care.
Common Mistakes and How to Avoid Them
The most common mistake is spacing the holes unevenly. Uneven spacing makes the seam look amateur even if the stitches are tight and straight. Use the awl itself to mark the spacing before you punch, and measure with a ruler if you are not confident in your eye. A second mistake is tilting the awl so the holes are angled instead of perpendicular to the leather. This makes the needle catch and the seam will not lie flat. Keep the awl upright and perpendicular to the surface at all times.
A third mistake is using a sharp needle instead of a blunt one. Sharp needles catch on leather fibers and can split the leather around the hole. Blunt needles slide through cleanly. A fourth mistake is pulling the thread too tight, which warps the leather and makes the seam pucker. Pull snug, but leave a little give in the thread so the leather stays flat.
Finally, do not punch all the holes at once and then stitch later. Leather can shift or curl if it sits with holes punched but unstitched, and the holes may not line up when you come back to stitch. Punch a few holes, stitch them, then punch the next few. This keeps the leather stable and the seam aligned.
Frequently Asked Questions
Can I use a regular sewing needle instead of an awl?
No. A regular needle will bend or break when you try to push it through leather, and you risk driving the needle into your hand. An awl is designed to punch through dense material without bending. It is a different tool for a different job.
What size holes should the awl make?
The hole should be just large enough for your needle to pass through without resistance. If the hole is too small, the needle will catch and the thread will fray. If the hole is too large, the thread will move around inside it and the seam will look loose. Most leather awls make a hole about the diameter of a toothpick, which is right for standard waxed thread.
How far apart should I space the stitches?
About one-quarter inch apart is standard for most leather work. Closer spacing (one-eighth inch) creates a tighter, more decorative seam but takes longer. Wider spacing (one-half inch) is faster but weaker. For belts and straps that take stress, stick with one-quarter inch. For decorative seams or patches, you can space them further apart.
What if the awl point breaks?
Stop using it when ready—a broken point will tear leather instead of punching clean holes. Have the awl professionally sharpened or replaced. Most leather tool suppliers can repair or replace awls, and the cost is low. Do not try to file or sharpen it yourself unless you have experience with sharpening tools.
Can I use an awl on suede or soft leather?
Yes, but use lighter pressure. Suede and soft leather are easier to puncture than thick vegetable-tanned leather, so a gentle push is enough. If you push too hard, you will enlarge the hole and the leather may tear. Test on a scrap piece first to get a feel for how much pressure is needed.