Why We Love the C.S. Osborne No.144 Shoe Awl
Why We Love the C.S. Osborne No.144 Shoe Awl
A century-old design that still outperforms the rest
There are tools you use, and then there are tools you trust. After a lifetime of stitching, skiving, and saddle-making, a good awl stops being a piece of equipment and starts feeling like an extension of your hand. The C.S. Osborne No.144 Shoe Awl is firmly in that second category — and it has been for well over a hundred years.
A heritage worth respecting
C.S. Osborne & Co. was established in Newark, New Jersey in 1826, making it one of the oldest tool manufacturers still in continuous production anywhere in the world. The company built its reputation supplying saddlers, cobblers, and harness-makers during an era when hand tools were expected to last a working lifetime. The No.144 is a direct descendant of that tradition — a diamond-blade awl that has barely needed to change because it was right from the start.
In an age when cheap imports flood the market and planned obsolescence is practically a design philosophy, there is something genuinely refreshing about a tool that has earned its place on the bench through decades of consistent, unglamorous performance.
The diamond blade: why it matters
The defining feature of the No.144 is its diamond-section blade. Unlike a round or flat awl, the diamond profile creates a clean, four-sided hole that closes around the thread as you pull it through. This is not a cosmetic distinction — it makes a real difference to the strength and neatness of hand-stitching, particularly in sole work, welting, and heavy uppers where thread tension is critical.
The blade is ground to a keen, acute point and holds an edge well. Leather workers who use cheap awls will know the frustration of a blade that dulls quickly and begins tearing rather than piercing the fibre. The Osborne blade resists that degradation. With occasional stropping on a leather strop loaded with compound, a No.144 blade can last years of regular use before it ever needs a proper resharpen.
Balance, feel, and the handle
Good tool design is ergonomic long before ergonomics became a buzzword. The traditional turned handle on the No.144 — typically beechwood or a similar hardwood — sits comfortably in the palm, allowing the craftsperson to apply controlled, even pressure without the grip fatigue that comes from undersized or poorly shaped handles. The weight distribution is front-heavy by a modest but noticeable degree, which helps guide the blade true through thick stacks of leather.
This is the sort of considered balance that develops when a design is tested across generations of actual use, rather than optimised for a product photograph.
Versatility across leather disciplines
Although the No.144 is categorised as a shoe awl, its utility extends well beyond footwear. Bag-makers use it for stitching punch-through work on gussets and straps. Saddlers reach for it when opening stitch holes in bridle leather. Belt makers, bookbinders working in leather covers, and even canvas workers have found it indispensable. The diamond blade suits any application where a clean pierce is more important than a wide opening.
It is also, frankly, an ideal learner's tool. Its forgiving geometry and reliable performance mean that beginners can focus on developing their stitching technique rather than fighting the tool itself.
Made to be repaired, not replaced
One of the quieter virtues of the No.144 is its repairability. The blade is a separate component from the handle, secured in a traditional manner that allows replacement if the blade ever snaps — a rare event, but not unknown in very heavy work. You are not buying a disposable item; you are buying a tool that rewards care. That philosophy is, at its heart, what leatherwork is all about.
Whether you are setting up your first workshop or adding a reliable workhorse to a collection of fine tools, the C.S. Osborne No.144 deserves a place on your bench. It is not a luxury item. It is simply a very good tool that happens to have stood the test of time.
The C.S. Osborne No.144 Shoe Awl (Diamond Blade) is available from British Leather Supplies.
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Post authored by Becky Cocker, leather artisan and owner of British Leather Supplies. If you'd like to explore a curated selection of quality leather tools and sewing supplies, check out our collection at British Leather Supplies. We’re here to help you take your leatherworking skills to the next level.