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Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black
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Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black
Ideal for drilling holes in metal, plastic, and laminates.
Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black
Item #: 2052552

Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black

Item #: 2052552

DZD 14837

Price Details

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

*All items will import from US

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Order now and get it around Wednesday, June 24
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Ideal for drilling holes in metal, plastic, and laminates.
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What Stands Out

Versatile Sizing
This step-drill bit offers a range from 13/16-inch to 1-3/8-inch, allowing for multiple hole sizes without changing bits, enhancing efficiency for various projects.
Durable Construction
Crafted with high-speed steel, the bit ensures longevity and consistent performance, designed to withstand the rigors of heavy-duty drilling tasks.
User-Friendly Design
Featuring a 1/2-inch shank, this bit fits most drills, providing easy compatibility and stability, making it ideal for both professionals and DIY enthusiasts.

Product Details

Shop Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black online at a best price in Algeria. B00075PU2G
Item Weight0.6 lbs (270 grams)

Who Should Buy?

Suitable For
  • Professional Contractors

    Ideal for contractors needing versatile drilling capabilities for metal, plastic, or wood during various construction projects.

  • DIY Enthusiasts

    Perfect for home improvement projects where adjusting hole sizes and precision drilling are often required.

  • Metal Workers

    Beneficial for metalworkers who need to create clean, tapered holes in various thicknesses of metal sheets.

Not Suitable For
  • Casual Users

    Not suitable for casual users who rarely drill; the investment in a step-drill bit might be unnecessary.

  • Soft Materials

    Ineffective for soft materials where traditional drill bits would suffice without changing hole diameters.

  • Limited Experience

    Users with limited drilling experience may find it challenging to utilize this bit's advanced features effectively.

Product Description

Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What sizes can I drill with the Irwin Tools Unibit #21?

    Answer: The Irwin Tools Unibit #21 allows you to drill hole sizes ranging from 13/16-inch to 1-3/8-inch. This versatility makes it ideal for various applications, from creating larger holes in metal and plastic to woodworking tasks needing specific diameters. It’s particularly useful in scenarios where multiple hole sizes are required, allowing you to switch without changing bits frequently.
  • Question: Is the Unibit #21 suitable for metal drilling?

    Answer: Yes, the Unibit #21 is specifically designed for metal drilling thanks to its premium materials and cutting-edge design. Its step-drill structure makes it effective for drilling into hardened metals and provides clean cut edges. This makes it an excellent choice for professionals and DIY enthusiasts dealing with tasks like installing fixtures and electrical work.
  • Question: Can I use the Unibit #21 on a handheld drill?

    Answer: Absolutely! The Irwin Tools Unibit #21 features a 1/2-inch shank, making it compatible with most standard handheld drills. Its design allows for stable drilling, which is essential for precision tasks. Whether you're a contractor or a hobbyist, this drill bit is excellent for projects that require portability and flexibility.
  • Question: What materials can I drill through with the Unibit #21?

    Answer: The Unibit #21 is capable of drilling through a variety of materials including aluminum, plastic, and wood. Its construction allows it to maintain performance even under tough conditions, making it suitable for diverse work scenarios. For example, it’s perfect for builders who need to drill holes in different substrates without having to change tools.
  • Question: How does the step design benefit drilling?

    Answer: The step design of the Unibit #21 allows for drilling multiple sizes with just one bit, significantly increasing efficiency. It has incremental steps that help in creating holes of varying diameter smoothly and reduces the likelihood of wandering while drilling. For auto mechanics or contractors working on tight schedules, this feature is a game changer.
  • Question: Is the Unibit #21 durable for heavy-use projects?

    Answer: Yes, the Irwin Tools Unibit #21 is engineered to withstand heavy-use projects. It is made from high-quality materials designed to endure rigorous tasks without dulling easily. This durability makes it suitable for professionals in construction, engineering, and maintenance who need reliable tools that last through extensive use.
  • Question: Does the Unibit #21 require a specific drill speed?

    Answer: For optimal performance, it's recommended to use the Unibit #21 at medium to high speeds. Using the right speed not only enhances cutting efficiency but also prolongs the life of the bit. Professionals suggest starting at lower speeds to initiate the hole and then increasing the speed as needed, especially for denser materials.
  • Question: Can I use the Unibit #21 for creating pilot holes?

    Answer: Yes, the Unibit #21 is great for creating pilot holes when you need to install screws or bolts. The gradual size increments allow you to create specific diameter pilot holes with precision, ensuring that the fasteners fit perfectly without splitting the material. This is especially beneficial in woodworking projects where structural integrity is critical.
  • Question: How do I clean and maintain the Unibit #21?

    Answer: Maintaining the Unibit #21 involves cleaning it after use to remove debris and lubricating it regularly to keep its cutting edges sharp. A soft brush or compressed air can help clear any particles lodged in the bit. Proper care extends its usability and ensures that it continues to perform effectively across multiple projects.
  • Question: Where can I buy Irwin Tools Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221) in Algeria?

    Answer: You can purchase the Irwin Tools Unibit #21 from Ubuy, a trusted platform that offers a wide range of tools and equipment. Ubuy ensures that you have access to this high-quality drill bit, providing you with the necessary information to make a well-informed decision while shopping online.

IRWIN Step Drill Bits Editorial Review

### Editorial Review The Irwin Tools Unibit #21 Step-Drill Bit has earned a solid reputation among users for its versatility and efficient performance in various drilling tasks. Many customers have highlighted its ability to drill through multiple materials with ease, making it an essential tool for both professionals and DIY enthusiasts. The bit's stepped design allows for precision drilling at different sizes without the need for changing bits, which has been particularly appreciated in scenarios requiring various hole sizes. Users commend the build quality of the Unibit, noting that it remains sharp even after repeated use, which prolongs its lifespan and enhances performance. The bit's 1/2-inch shank provides a robust grip in drill chucks, minimizing slippage during operation. Many find the design ergonomic and straightforward, facilitating a smooth drilling experience. The wide range of sizes covered by this step drill bit makes it a one-stop solution for various projects, reducing the need for multiple drill bits. However, a few users have reported challenges when using the bit on tougher materials, experiencing slower drilling times. Additionally, some feedback indicated that while it performs exceptionally well on softer materials, users should approach harder substrates with caution to maintain the integrity of the tip. Overall, the Irwin Tools Unibit #21 has been well-received in the market, with customers valuing its utility, durability, and efficiency across diverse applications. ### Pros and Cons **

Customer Reviews & Ratings

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Pros

  • Versatile for drilling multiple hole sizes without changing bits.
  • High-quality build that maintains sharpness over time.
  • Robust 1/2-inch shank reduces slippage.
  • Ergonomic design for user-friendly operation.
  • Suitable for various materials.

Cons

  • Slower drilling speed on harder materials.

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.

DZD 14837

Order now and get it around Wednesday, June 24

QTY:

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
Fastest cross-border delivery

Features & Benefits

  • Step drill #21 offers 10 hole sizes for versatile use.
  • Capacity ranges from 13/16-inch to 1-3/8-inch.
  • Features a 3-flat shank design to prevent slipping.
  • Single-flute cutting edge yields true round holes.
  • Perfect for thin materials, including metal and plastic.
  • A reliable tool for efficient hole enlarging and drilling.