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HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating
118° Split Point Tip & Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily
50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs
Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel & wood)
Equipped with a well-organized case, make it more convenient for using and storing the step drills
PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal.
STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean.
SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 31 step sizes, each hole made with these step bits will be precise.
QUICK-CHANGE: The 1/4-inch hex shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools.
INCLUDES: Each bit set comes with 3 drill bits of a combined 31 sizes to add to your drilling arsenal: 13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch).
【QUILITY STEP DRILL BITS】 The step drill bits are made of classic high-speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper, stainless steel and many other types of sheet metal.
【DOUBLE CUTTING BLADES DESIGN】The HSS step drill bit set is designed with double cutting blades, which provides faster, smoother and accurate drilling.
【TRI-FLATTED SHANK】 Each unibit step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output.
【WELL PERFORMED 】 The multiple hole drill bit set include 28 size, which can cuts through steel, sheet metal, wood board and other surfaces creating relatively clean holes as you drill. Suitable for home DIY, and general building/ engineering use.t slippage and shedding during the rotation.
【SET INCLUDES】The cone drill bits set includes 3 common sizes for versatility. Bit #1 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; Bit #2 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4". If you are not fully satisfied with the step bit for any reason, please contact us for 100% refund or replacement.
Enhanced Durability with Titanium Coating: Our high-speed steel (HSS) drill bits, fortified with a titanium coating, offer exceptional durability and maintain sharpness even through demanding tasks. The titanium coating increases wear resistance and minimizes friction, resulting in cooler operation.
Versatile Hole Processing: Our step drill bits cater to a wide range of hole diameters, effectively eliminating the hassle of switching between multiple bits. This versatility proves invaluable for tasks involving metal, wood, and plastic, including countersunk holes.
Precision-Engineered Design: The split point tip, set at a 118-degree angle, significantly enhances wear resistance, making the drill bits long-lasting and efficient. The innovative two-flute design facilitates smoother cutting and enables easy evacuation of material particles, promoting cleaner and more precise drilling operations.
Convenient Storage Solution: Our step bit set comes complete with a purpose-designed holder featuring a size index. This inclusion ensures effortless organization and storage, preventing the bits from falling out and keeping your workspace tidy.
Comprehensive Set: This step drill bits set encompasses five commonly used sizes, granting you the flexibility to work with a wide array of materials and hole dimensions.
Durable HSS Drill Bit ----- High-speed steel makes it last longer than others, titanium coating ensure easily cut through iron sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean.
Titanium Coating ----- Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance.
Revolutionary Design ----- Tri-flatted shank fits into power tools chuck securely and eliminates slip; two-flute design clears chips faster and allows particles to escape easily.
A Must-Have for Handyman or Professionals ----- Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal).
HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler.
Size Includes - 10 Sizes from 1/4 to 1-3/8 inch can fit the majority of brands currently on the market.
Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for steel sheets/ aluminum sheets/ copper/ plastic/ wood board and many other types of sheet metal with ease countersunk. Suitable for Home DIY, and General Building/ Engineering Use.
A Must-Have for Handyman or Professionals - Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal).
Quick Chip Removal - Double flutes design allows the particles escape easily for a clean drilling operation.
Excellent Father's Gift Idea - Searching for a practical and functional woodworking gift for dad? This drilling tools makes an excellent Father's Day gift,by combining the capabilities of multiple tools in one, our variety of drill bits help users minimize the number of tools required for different tasks, effectively decluttering workspaces and simplifying tool management
Ultimate Drill Bits Set- This unibit step drill bit includes 5 step bit in sizes 3/16-1/2'', 1/8-1/2'', 1/4-3/4'', 3/16-7/8'', 1/4-1-3/8'', effectively replacing 50 sizes of conventional drill bits. Along with a center punch. Additionally, the counter sinker drill bit set in sizes1/4'', 3/8'', 1/2'', 5/8'', 3/4''.
Premium Quality Drill Bit Set - Our countersink and step drill bit set is made from high speed steel for longer cutting edge life even at extreme temperatures.step drill set with a titanium coating significantly improves durability and sharpness for less friction and cooler operation,performs well in heat, corrosion and rust resistance.
Premium Design - Counter sinker drill bit set very suitable for sinking 90 degree holes in wood and soft metal countersunk screws and fasteners. Step drill with 118 ° split tip and double groove design, increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily.
Convenient storage and organization - The drill bit kit is packaged in a sturdy and compact aluminum storage case, which can maintain the order and protection of the drill bit, reduce wear, and make it an important supplement to the toolbox.
HSS Titanium Coating: Our high-speed steel drill bits, fortified with a titanium coating that makes the drill bit harder than a typical HSS bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance.
Precision-Engineered Design: Two-flute spiral grooved design deburrs chips, dust and debris for clearance and smooth cutting. The 118° split point tip drill reduces friction, pressure, and heat, making the drill bits long-lasting and efficient.
Wide Application: Our step drill bit can process different diameter holes, and can be used on materials such as metal heavy-duty, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc. Suitable for home DIY and general use.
Quick Change: The 1/4-inch hex shank fits easily and securely into all power tools to prevent slippage and shedding during rotation.
Step drill bits, also known as unibits, are versatile tools designed for drilling holes in metal, plastic, and other materials, with the ability to enlarge holes progressively without changing bits. Ideal for electricians, metalworkers, and DIY enthusiasts, step drill bits are perfect for projects requiring precision and efficiency in creating holes of various diameters. With their unique stepped design, these bits can deburr holes as they drill, providing clean, smooth finishes. Selecting the right step drill bit requires understanding the specific features that match your project needs. This guide will help you navigate through those features to choose the best step drill bits for your tasks.
Key Features to Consider
Material
High-Speed Steel (HSS): Offers durability and is suitable for drilling into softer metals and plastics.
Cobalt (Co): Provides superior heat resistance and longevity, ideal for drilling into harder metals.
Titanium Coating: Increases the bit’s hardness and reduces friction, extending the lifespan and performance when drilling into various materials.
Number of Steps
Step Count: The number of steps on the bit determines the range of hole sizes it can drill. More steps allow for more size options but may result in less material between each step.
Size Range
Drill Size Range: Ensure the bit covers the range of hole sizes you need for your project. Some sets come with multiple bits to cover a wider range of sizes.
Shank Type
Round Shank: Fits most standard drills but may slip under high torque.
Hex Shank: Provides a better grip, reducing the chance of slipping, especially in high-torque applications.
Flute Design
Single Flute: Offers faster chip removal but may not be as stable as multi-flute designs.
Double Flute: Provides better stability and smoother cutting, ideal for precise drilling tasks.
Tip Angle
Tip Angle: Affects the ease of starting a hole. A split-point tip can start drilling on contact without a pilot hole, reducing “walking.”
Durability and Heat Resistance
Construction Quality: High-quality materials and construction ensure the bit can withstand the heat and pressure of drilling through tough materials.
Pros and Cons
Pros of Step Drill Bits
Cons of Step Drill Bits
✔️ Can drill holes of various sizes with one bit
❌ Higher-quality bits can be expensive
✔️ Ideal for thin materials, including metal and plastic
❌ Not suitable for drilling into very hard or thick materials
✔️ Produces clean holes and can deburr automatically
❌ Limited step depth may not be suitable for all material thicknesses
✔️ Reduces the need for multiple drill bits
❌ Can wear out faster if used improperly or on inappropriate materials
Quick Tips
Assess Your Material: Choose a bit material and coating based on the hardness of the materials you frequently drill.
Consider the Size Range: Select a bit or set that covers the hole sizes you most commonly need for your projects.
Opt for Quality: Investing in a higher-quality bit with a durable coating can save money in the long run by reducing the need for replacements.
Selecting the best step drill bits involves considering the material, number of steps, size range, shank type, flute design, tip angle, and overall durability and heat resistance. The ideal step drill bit for your projects will offer the versatility, efficiency, and precision needed to tackle a wide range of drilling tasks. Whether you’re working on metal fabrication, electrical installations, or general DIY projects, investing in high-quality step drill bits can significantly enhance your ability to create precise holes of various sizes, leading to better results and more efficient project completion.
