OLFA
0 ratings
OLFA 4mm Art Knife Replacement Blades (KB-5/30B) - Carbon Steel, 25 Blades
genuine image
OLFA 4mm Art Knife Replacement Blades (KB-5/30B) - Carbon Steel, 25 Blades
OLFA Ultra Sharp Black Blades are 25% sharper than standard silver blades.
OLFA 4mm Art Knife Replacement Blades (KB-5/30B) - Carbon Steel, 25 Blades
Item #: 85914943

OLFA 4mm Art Knife Replacement Blades (KB-5/30B) - Carbon Steel, 25 Blades

87% of respondents would recommend this to a friend

Item #: 85914943

RWF 30665

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Wednesday, October 07
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
OLFA Ultra Sharp Black Blades are 25% sharper than standard silver blades.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Precision Cutting
Each blade ensures accurate and clean cuts, making it ideal for detailed work on graphics, models, and miniatures.
Versatile Compatibility
Compatible with most standard 4mm art knives, providing flexibility for various craft projects and enhancing user convenience.
Value Pack
Includes 25 blades in one set, offering long-lasting supply for hobbyists and crafters, ensuring value and productivity in every project.

Product Details

Shop OLFA 4mm Art Knife Replacement Blades (KB-5/30B) - Carbon Steel, 25 Blades online at a best price in Rwanda. B00U4FB7TO
Brand NameOLFA
Unit Count1 Count
ManufacturerOLFA
UPC091511230017
Global Trade Identification Number00091511230017
Item Type NameOLFA Art Knife Replacement Blades 30/Pkg
Model Number154431
Manufacturer Part Number8074
Item Length25 inches (63.5 cm)
Material TypeCarbon Steel
Handle MaterialRubber,Steel
Blade MaterialCarbon Steel
ColorWhite
Product StyleCraft Knife
Handle TypeManual-Retractable
MaterialCarbon Steel
BrandOLFA
StyleCraft Knife
Item HighlightCarbon steel 4mm art blades, 25-pack, fits most 4mm art knives - Graphics and craft cutting - Quilters and Crafters See more
Item Weight0.2 lbs (90 grams)

Who Should Buy?

Suitable For
  • Hobbyists

    Ideal for hobbyists who frequently work on detailed crafts, models, or miniatures requiring precise cuts.

  • Graphic Designers

    Useful for graphic designers needing reliable and sharp blades for cutting stencils and precise graphics.

  • DIY Enthusiasts

    Perfect for DIY enthusiasts looking for versatile blades suitable for various craft projects and materials.

Not Suitable For
  • Children

    Not suitable for children due to sharp blades, which can pose a safety risk during craft activities.

Product Description

OLFA 4mm Art Knife Replacement Blades (KB-5/30B) - Carbon Steel, 25 Blades

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What types of projects are best suited for the OLFA 4mm Multi Purpose Art Knife Blade Set?

    Answer: The OLFA 4mm Multi Purpose Art Knife Blade Set is ideal for a wide range of projects, including graphic design, model building, and crafting miniatures. The precision cutting capabilities of the blades allow you to create intricate designs, trim paper or cardboard, and work on detailed art pieces. Whether you are a seasoned hobbyist or a beginner, this blade set provides the versatility needed for everything from cutting thin materials to precision cuts on thicker substrates.
  • Question: How many blades are included in the OLFA KB-530B set?

    Answer: The OLFA KB-530B set includes 25 premium quality replacement blades. This ensures you have plenty of blades on hand for extended projects without the need for constant replacements. The longevity and durability of OLFA blades make them a reliable choice for any hobby, ensuring you can focus on your creativity without interruption.
  • Question: Are these blades compatible with any art knife or cutting tool?

    Answer: Yes, the OLFA 4mm Multi Purpose Art Knife blades are designed to fit a variety of standard hobby knives and cutting tools that accept 4mm blades. This compatibility makes it easy to switch out blades as needed, ensuring you can maintain optimal performance for your crafting projects. Check the specifications of your existing knife to confirm fit before use.
  • Question: Can I use these blades for cutting through thicker materials?

    Answer: While the OLFA blades are primarily designed for precision cutting in lightweight materials like paper and cardstock, they can also handle thicker materials when used with the right technique. For tackling tougher materials, the key is to apply steady pressure and use multiple passes if necessary. This approach ensures clean cuts and helps maintain blade sharpness, extending their usability for various types of projects.
  • Question: What safety precautions should I take when using the OLFA art knife?

    Answer: When using the OLFA art knife, it’s important to follow basic safety precautions. Always cut away from your body and keep your fingers clear of the cutting path. Use a cutting mat or a safe surface to protect your workspace and blade from damage. Additionally, always ensure that the blade is stored securely when not in use to prevent accidental injuries, especially around children or pets.
  • Question: How should I store the OLFA blades to maximize their lifespan?

    Answer: To maximize the lifespan of your OLFA blades, store them in a dry, cool place and keep them in their original packaging or a dedicated blade case. Ensure that the blades are not exposed to moisture, which could rust them, and avoid mixing used blades with new ones to maintain sharpness and quality. Proper storage will help keep your blades in peak condition for future projects.
  • Question: Are these blades suitable for beginners?

    Answer: Yes, the OLFA 4mm Multi Purpose Art Knife Blade Set is suitable for beginners as well as experienced crafters. Their design facilitates easy handling and maneuverability, making them user-friendly for those learning the ropes of precision cutting. With guided practice, beginners can produce professional-quality results in their art and craft projects.
  • Question: Can I use these blades for scrapbooking and card-making?

    Answer: Absolutely! The OLFA blades are perfect for scrapbooking and card-making due to their precision cutting capabilities. They allow you to create detailed shapes and trims for embellishments, making your crafts look polished and professional. The blades’ sharpness is particularly advantageous in achieving crisp cuts on decorative papers and materials.
  • Question: What is the preferred method to change the blades safely?

    Answer: To change the blades safely on your OLFA knife, ensure your hands are dry and the knife is not in use. Grip the handle firmly while using the designated tool or mechanism to release the old blade and carefully insert the new one until it clicks into place. Always dispose of used blades responsibly in a designated sharps container to avoid injury.
  • Question: Where can I buy the OLFA 4mm Multi Purpose Art Knife Blade Set in Rwanda?

    Answer: You can conveniently purchase the OLFA 4mm Multi Purpose Art Knife Blade Set at Ubuy in Rwanda. Ubuy offers a user-friendly platform for ordering this high-quality precision blade kit, allowing you to enhance your crafting experience efficiently. Their service ensures a seamless shopping experience for hobbyists and professionals alike.

OLFA Art Blades 154431 Editorial Review

No editorial reviews found

Customer Reviews & Ratings

1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9477 reviews
Read reviews
JK
Jasmin
Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
AG
Anke
Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
H
Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
AC
Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

RWF 30665

Order now and get it around Wednesday, October 07

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • OLFA blades made with top quality materials and traditional sword-making technologies
  • Snap-off blades consistently sharper than others
  • OLFA Ultra Sharp Black Blades 25% sharper than standard silver blades
  • ENDURANCE rotary blades cut 2X longer than standard blades
  • Commitment to user safety in design
  • KB-5/30B Multi Purpose Art Knife Blade Set with 25 heavy-duty blades

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.