It sounds like you've found a tool that perfectly suits your needs and you're comfortable and proficient with it. That's a valuable thing! It's understandable you wouldn't want to switch after 45 years.Since finding a replacement Klein Swing Knife might be difficult (and even if you do, it won't be the one you're used to), here are some options you might consider to keep your current one going

Maintenance and Repair:
Sharpening

Keeping the blade sharp is crucial for safe and efficient stripping. Learn how to properly sharpen the blade of your Klein Swing Knife.

Lubrication

Keeping the pivot point lubricated will ensure smooth operation and prevent unnecessary wear. Use a light machine oil or even a dedicated knife lubricant.

Handle Care

If the handle is wood or a softer material, occasionally clean and treat it to prevent drying and cracking.

Spring/Mechanism Inspection

Periodically inspect the spring mechanism (if it has one) for wear or damage. A weak or broken spring could affect performance and safety.

Backup Plans (for when your current knife eventually wears out)



Search online

Search for your current knife model on online marketplaces like eBay. Used models in good condition may come up for sale.

Search for similar models

Search for swing knives that have similar designs and features as your current knife. A similar model may be more readily available and offer a comparable experience.

Custom-made

If you are unable to locate another swing knife, you may want to consider contacting a custom knife maker. They could craft a tool based on the specifications of your current knife.

Keep an eye out at flea markets and estate sales: You never know when you might stumble upon a forgotten tool at a flea market or estate sale.By taking good care of your Klein Swing Knife, you can hopefully extend its lifespan for many more years. And by having backup plans, you'll be prepared for the inevitable day when it needs to be replaced. Flag for review