C.S. Osborne Saddlers Harness Awl - Various Sizes

SKU: OSB--42
Size: #42: Overall Length: 1-1/2"

Price
$124.00
Taxes and shipping calculated at checkout

Frequently Bought Together

Upgrade your leathercraft with the C.S. Osborne Saddlers Harness Awl. Featuring a diamond pointed tempered steel blade, it creates perfect angled slits for hand stitching thick leather. Available in ten sizes from 1.5 inches to 3.25 inches. Fit it into your favorite haft for professional saddlery, cobbling, and upholstery work.

Detailed Specifications and All Available Sizes:

Because different leather projects require different thread thicknesses and penetration depths, C.S. Osborne produces these harness awl blades in ten highly specific sizes. Each size has a weight of 1 ounce per dozen. This ensures you always have the perfect width and length for your specific hand sewing requirements.

  • Osborne No. 42: Overall Length: 1-1/2 inches, UPC: 62100.
  • Osborne No. 43: Overall Length: 1-3/4 inches, UPC: 62102.
  • Osborne No. 44: Overall Length: 2 inches, UPC: 62104.
  • Osborne No. 45: Overall Length: 2-1/4 inches, UPC: 62106.
  • Osborne No. 46: Overall Length: 2-1/2 inches, UPC: 62108.
  • Osborne No. 47: Overall Length: 2-5/8 inches, UPC: 62110.
  • Osborne No. 48: Overall Length: 2-3/4 inches, UPC: 62112.
  • Osborne No. 49: Overall Length: 2-7/8 inches, UPC: 62114.
  • Osborne No. 50-H: Overall Length: 3 inches, UPC: 62116.
  • Osborne No. 52: Overall Length: 3-1/4 inches, UPC: 62118.

The Essential Tool for Traditional Hand Stitching:

The C.S. Osborne Saddlers Harness Awl is a specialized, diamond pointed instrument crafted specifically for professional leatherworking. Unlike standard scratch awls that feature a round piercing profile, the saddlers harness awl is forged with a diamond shaped blade. This distinct geometric design allows the tool to cleanly slice through thick, dense leather rather than merely pushing the fibers apart. When creating a traditional saddle stitch by hand, this precise cutting action is absolutely critical. It creates a neat, angled slit that allows two needles to pass through simultaneously, ensuring your waxed thread lays flat and maintains an elegant, professional appearance on both sides of the seam. Whether you are a beginner looking to improve your stitching or a seasoned saddler, this tool will completely elevate your craftsmanship.

Primary Applications:

  • Saddlery and Tack Making: The primary historical and modern use for this instrument is crafting and repairing heavy equestrian gear. Thick bridle leather and multi layered harness straps require a robust blade that can penetrate deeply without bending or snapping.
  • Custom Leathercraft: This awl is ideal for hand stitching fine leather goods such as bespoke wallets, custom belts, and durable knife holsters. The diamond blade shape ensures your stitching holes remain consistently angled, which is the hallmark of high end, handcrafted leather items. For complementary tools and handle options, browse our C.S. Osborne Awls & Hafts collection.
  • Heavy Canvas and Upholstery Stitching: While primarily known as a leatherworking tool, professionals also rely on it to pierce heavy layered industrial fabrics where a standard needle would struggle or break. You can find more upholstery specific tools in our C.S. Osborne Upholstery Tools section.
  • Shoemaking and Cobbling: Hand stitching leather soles and tough boot welts demands a rigid, sharp awl that can easily penetrate dense, treated shoe leathers without hesitation.

Exceptional Product Benefits:

  • Diamond Point Precision: The finely ground diamond shape significantly reduces friction when piercing leather. This minimizes the physical force required and prevents the leather from puckering, distorting, or tearing around the hole.
  • Premium High Carbon Steel: Manufactured entirely in the United States, these blades are hot forged and meticulously tempered to hold an incredibly sharp edge over time. They will not readily bend, even when forcefully pushed through the thickest saddle skirting.
  • Customizable Tool Setup: These blades are expertly designed to be mounted into a compatible wooden awl haft or handle. This allows craftsmen to swap out different blade sizes into their favorite ergonomic handle, customizing their setup for each unique project and reducing workspace clutter.
  • Centuries of Craftsmanship: C.S. Osborne has been the recognized gold standard in leatherworking tools since 1826. By choosing this saddlers awl, you are directly investing in a proven legacy of American manufacturing excellence that has been trusted by professionals for generations.

Frequently Asked Questions (FAQs):

1. What is the difference between a harness awl and a scratch awl? A scratch awl features a round blade and a sharp conical point, which is used mainly for scratching layout lines or making circular starter holes in wood and soft materials. A saddlers harness awl features a diamond shaped blade that actually cuts an angled slit into leather. This slit is specifically meant for sewing a traditional saddle stitch, allowing the threads to nest perfectly.

2. Do these awl blades come attached to a handle? No, these are standalone replacement blades designed to be fitted into an interchangeable awl haft. Most leatherworkers prefer to purchase a comfortable haft separately, such as the C.S. Osborne No. 142 Palm Awl Haft or the No. 141 Knurled Chuck Awl Haft, and then interchange these blades as needed for different projects.

3. How do I maintain and sharpen the diamond point of the blade? To keep your tool performing flawlessly, you must maintain the sharp cutting edges of the diamond profile. Use a fine leather strop coated with a jewelers polishing compound before and after every use. If the blade becomes completely dull, you can gently reshape the flat sides on a fine diamond sharpening stone before stropping it back to a mirror finish.

4. How do I choose the correct size blade for my specific project? The size of your awl blade should correspond directly to the thickness of your thread and the spacing of your stitching prongs. Smaller sizes like the No. 42 and No. 43 are incredibly popular for fine leather goods like wallets and watch straps. Larger sizes like the No. 50-H or No. 52 are reserved for thick saddlery, heavy weight belts, or thick multi layered knife sheaths.

5. How do I properly insert the metal blade into a wooden awl haft? If you are using a standard wooden haft without a mechanical tightening chuck, place the tang of the blade into the pre drilled hole of the haft. Place the tip of the blade onto a piece of scrap wood, and gently tap the back of the wooden handle with a mallet until the blade is seated firmly. Do not strike the metal blade directly, as this can cause irreversible damage.

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