Returns & Guarantee

Warthog Blade Sharpeners International

At KnifeSharpners.nz, we stand behind the quality of our products and want you to shop with confidence.

Change of Mind Returns (Non-Defective Items)

If you change your mind, you may return your item within 30 days of receiving it.

To be eligible:

  • Item must be unused and in original packaging
  • Proof of purchase is required

Please note:
Return shipping costs for non-defective items are the responsibility of the customer

Faulty or Defective Items

If your item is faulty or not performing as expected, please contact us as soon as possible.

We will:

  • Offer a replacement, repair, or full refund
  • Cover all return shipping costs for defective items

Refunds

Once your return is received and inspected:

  • Refunds are processed within 7–10 business days
  • Refunds will be issued to your original payment method

Restocking Fees

We do not charge any restocking fees

Our Guarantee

We carefully select and supply high-quality knife sharpeners designed to last.
If you have any issues or need assistance, we are always happy to help — just reach out.

Warthog Blade Sharpeners warrants that our Sharpeners and Diamond stones will be free from defect and that only the best Quality material is used to manufacture this product. This Guarantee is granted safely to the Buyer. Warthog Blade sharpeners will replace any defective products free of charge. Buyer must return the defective product to Warthog Blade Sharpeners for inspection. Warthog Blade Sharpeners have no obligation under this Guarantee if the product is mistreated or modified, or if the product has not been used according to its instructions.

Consequential Damages: In the event the manufacturer shall not be held liable for any special indirect incidental or consequential losses or damages allegedly attributed to this product.

 

WARTHOG DIAMOND STONE

Warthog Blade Sharpeners manufactures high quality diamond stones that are free of defects. Diamond stones will retain their cutting ability for years of use. Diamond stones are manufactured for hand sharpening and not for motor-driven application. Initially your diamond stone will seem especially aggressive. It will smooth over time. When sharpening you need not to exert pressure – let the diamonds do the work. To test diamond stone use it on glass (ashtray or bottle, if it scratches the glass the diamonds are still in tact.) Diamond stones can be used dry or use water for a lubricant. Do not use oil on diamond stones. When sharpening it fast, use water or water with a little bit of dish washing soap to keep the stone cool and prevent it from clogging. When cleaning is needed use soap water and a scrub brush, do not use petroleum-based cleaners.