--- product_id: 521835218 title: "KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set" brand: "kseibi" price: "484 Lei" currency: RON in_stock: true reviews_count: 8 url: https://www.desertcart.ro/products/521835218-kseibi-598240-industrial-grade-unibit-3-pieces-step-drill-bits store_origin: RO region: Romania --- # 4X longer bit life 2X faster hole times 50% more holes per battery charge KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set **Brand:** kseibi **Price:** 484 Lei **Availability:** ✅ In Stock ## Summary > 🔩 Drill smarter, faster, and longer—because your projects deserve the best! ## Quick Answers - **What is this?** KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set by kseibi - **How much does it cost?** 484 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/521835218-kseibi-598240-industrial-grade-unibit-3-pieces-step-drill-bits) ## Best For - kseibi enthusiasts ## Why This Product - Trusted kseibi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Tapered Design:** Achieve clean, accurate holes every time with a secure 1/4 inch hex shank connection. - • **Jam-Free Dual-Flute Design:** Experience smooth, uninterrupted drilling with up to 2X faster hole completion. - • **Optimized for Cordless Drills:** Maximize battery life with up to 50% more holes per charge, ideal for on-the-go pros. - • **Industrial-Grade High-Speed Steel:** Built to last with black oxide M2 material for superior strength and wear resistance. - • **Versatile Step Drill Functionality:** One bit, multiple hole sizes—perfect for metal, plastic, and wood projects. ## Overview The KSEIBI Unibit 3-Piece Step Drill Bit Set combines industrial-grade high-speed steel with a jam-free dual-flute design, delivering up to 2X faster drilling and 4X longer bit life. Engineered for precision and versatility, these bits handle stainless steel, aluminum, wood, and plastic with ease, optimized for cordless drills to extend battery life by 50%. A must-have for professionals and DIYers aiming for efficiency and durability in every hole. ## Description Our mission is to satisfy our customers’ requirements and simplify their daily work! Since establishment, our idea was simple: quality products didn't have to be an "expensive" experience. And as we have grown, our mission has expanded to ensuring that better tool is accessible to everyone. For a decade, KSEIBI has been synonymous with quality, reliability, innovation, and value., we strive every day to design and build tools you can always count on for high stakes projects. With high-quality products, a strong brand, the range is already proving to be a massive success. What are step drill bits used for? Step drill bits are used to drill holes of various sizes in materials such as metal, wood, plastic, etc. They are often used in applications where a clean, accurate hole is required, such as in the automotive, aerospace, and construction industries. How do step drill bits work? Step drill bits work by gradually increasing in diameter as they are used to drill a hole. Each step of the bit has a different diameter, allowing the user to drill multiple sizes of holes with just one tool. What is the difference between a step drill bit and a regular drill bit? A regular drill bit has a fixed diameter and can only drill holes of that size, while a step drill bit has multiple steps with increasing diameters, allowing it to drill multiple sizes of holes with one tool. What is the proper way to use a step drill bit? The proper way to use a step drill bit is to start with the smallest step and gradually work your way up to the desired hole size. It is important to use the correct speed and pressure when drilling to avoid overheating the bit. Can step drill bits be used with a hand drill or only with a drill press? KSEIBI Step drill bits can be used with both a hand drill and a drill press or even the impact screwdriver. However, using a drill press can provide greater control and precision when drilling, particularly with thicker materials. #1 Step Drill Bits #2 Step Drill Bits #4 Step Drill Bits #9 Step Drill Bits Step Drill Bits Set 3 Pcs #1 Step Drill Bits #2 Step Drill Bits #3 Step Drill Bits #4 Step Drill Bits #5 Step Drill Bits ## Features - Dual-Flute Design for Enhanced Performance: Features a dual-flute design delivering up to 2X faster hole times, up to 4X longer life and up to 50% more holes per battery charge than standard drill bits, optimized for cordless drills running at high speed for drilling large and small diameter holes in steel and plastic - High-Speed Steel Construction with Black Oxide M2 Coating: Constructed with high-speed steel and black oxide M2 material for superior strength and wear resistance, suitable for drilling through metal, stainless steel, plastic, and other materials - Tapered Design with 1/4 Inch Impact Shank: Tapered design ensures precise and accurate drilling every time, while the 1/4 inch impact shank provides a secure and stable connection to your power tools - Industrial-Grade Durability: Industrial-grade construction ensures durability and longevity, making it a reliable tool for professional tradespeople and DIY enthusiasts alike - Versatile Stepped Design: Versatile drill bit with a stepped design that enables it to function as a unibit or stepdown bit, providing efficiency and convenience for a range of drilling needs - Spiral Flute Design for Multiple Thicknesses: Spiral flute design with different steps provides smooth and efficient drilling through a range of thicknesses without the need for multiple bits, making it a practical tool for any project - Three-Piece Set with Ready Impact Capability: Complete 3-piece step drill bits set with 1/4 inch shank designed for impact-ready performance, providing versatility for various drilling applications in stainless steel, aluminum, and wood ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0BQQS28Q4 | | Best Sellers Rank | #60,630 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #98 in Step Drill Bits #165 in Wood Drill Bit Sets | | Brand Name | KSEIBI | | Customer Reviews | 4.6 4.6 out of 5 stars (257) 4.6 out of 5 stars | | Cutting Angle String | 135 degrees | | Cutting Diameter | 0.88 inches | | Finish Types | Black Oxide,High-speed Steel,Stainless Steel,Steel | | Included Components | Step Drill Bit Set | | Item Highlight | Ready Impact 1/4 inch Shank, High-Speed Steel, Black Oxide M2, For Drilling Stainless Steel, Aluminium, Wood | | Manufacturer | KSEIBI | | Material Type | High Speed Steel Stainless Steel | | Model | 598240 | | Number Of Flutes | 2 | | Number Of Pieces | 3 | | Part Number | 5750 | | Point Style | Step Point | | Set Name | 3-Piece Set | | Shank Type | Hex | | Surface Recommendation | Metal, Plastic, Wood | | Tool Flute Type | Spiral | | Unit Count | 3 Count | ## Product Details - **Cutting Angle String:** 135 degrees - **Cutting Diameter:** 0.88 inches - **Finish Type:** Black Oxide,High-speed Steel,Stainless Steel,Steel - **Material:** High Speed Steel Stainless Steel - **Shank Type:** Hex ## Images ![KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set - Image 1](https://m.media-amazon.com/images/I/81a08gtvvuL.jpg) ![KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set - Image 2](https://m.media-amazon.com/images/I/81KvoNiDRGL.jpg) ![KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set - Image 3](https://m.media-amazon.com/images/I/81VR4Rnec0L.jpg) ![KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set - Image 4](https://m.media-amazon.com/images/I/91hOKq4A1QL.jpg) ![KSEIBI 598240 Industrial Grade Unibit 3-Pieces Step Drill Bits Set - Image 5](https://m.media-amazon.com/images/I/81FlwhswJvL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What are step drill bits used for?** A: Step drill bits are used to drill holes of various sizes in materials such as metal, wood, plastic, etc. They are often used in applications where a clean, accurate hole is required, such as in the automotive, aerospace, and construction industries. **Q: How do step drill bits work?** A: Step drill bits work by gradually increasing in diameter as they are used to drill a hole. Each step of the bit has a different diameter, allowing the user to drill multiple sizes of holes with just one tool. **Q: What is the difference between a step drill bit and a regular drill bit?** A: A regular drill bit has a fixed diameter and can only drill holes of that size, while a step drill bit has multiple steps with increasing diameters, allowing it to drill multiple sizes of holes with one tool. **Q: What is the proper way to use a step drill bit?** A: The proper way to use a step drill bit is to start with the smallest step and gradually work your way up to the desired hole size. It is important to use the correct speed and pressure when drilling to avoid overheating the bit. **Q: Can step drill bits be used with a hand drill or only with a drill press?** A: KSEIBI Step drill bits can be used with both a hand drill and a drill press or even the impact screwdriver. However, using a drill press can provide greater control and precision when drilling, particularly with thicker materials. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Quality! Good Deal! *by on Reviewed in the United States October 21, 2025* Love these! I am building a shipping container home and I was having a hard time drilling the starter holes to cut out windows and door in the steel. After getting these bits I was able to drill the holes much easier and faster. Quality is A+! The value is good as Ace Hardware wanted $60 for one bit.I love having 3 sizes and a nice storage box. ### ⭐⭐⭐⭐⭐ Makes your holes bigger and better *by on Reviewed in the United States March 27, 2025* I’ve been using this KSEIBI step drill bit set for about a month now on different home metalworking projects, and I’m really happy with how they’ve held up. I mostly work on DIY repairs in the garage — stuff like fixing brackets, making cleaner holes in sheet metal, and modifying hardware — and these bits have made that way easier.They cut smooth and don’t grab or jump when I start drilling, which is something I’ve had trouble with in cheaper sets. I’ve used them on aluminum, steel, and even some old brackets I wasn’t sure about, and they still feel sharp. For the price, they’ve definitely delivered more than expected — really solid value for the money.Functionality-wise, they hit the mark. The steps are clearly marked, so it’s easy to stop at the right size without over-drilling. The metal feels durable, and they haven’t overheated or dulled quickly, even with frequent use. I haven’t had to sharpen them yet, which says a lot.If you do light to medium-duty metal work at home, this set punches well above its weight. Solid performance and a good buy all around. ### ⭐⭐⭐⭐⭐ Unbelievable *by on Reviewed in the United States November 27, 2023* The product is the first thing that I have ever bought (I am 58) that has done everything it said it would do and more. It cuts through steel like it wood and it does it so fast that if I wasn’t seeing it with my own eyes I wouldn’t believe itWorth every penny and moreTo the employees who are making these thank you for an awesome product I am sold and will be a customer for life and thanks also to the rest of the companyTruly one happy customer ## Frequently Bought Together - KSEIBI Unibit 3-Piece High-Speed Steel Step Drill Bit Set - for Stainless Steel, Aluminium, Wood - Jerax tools 1/4 to 3/4 Inch Step Drill Bit, M2 High Speed Steel Drill bits for Hole Drilling in Extra Thick Material/Panel/Plate, Stainless Steel, Copper, Aluminum, Wood, Plastic - KSEIBI 598240 Industrial Grade Unibit 5-Pieces Step Drill Bits Set 3-Flat Shank, High-Speed Steel Metal Drill Bits Kit Black Oxide M2 for Drilling Stainless Steel, Aluminium, Wood --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/521835218-kseibi-598240-industrial-grade-unibit-3-pieces-step-drill-bits](https://www.desertcart.ro/products/521835218-kseibi-598240-industrial-grade-unibit-3-pieces-step-drill-bits) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-10-25*