| Customization: | Available |
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| Customized: | Customized |
| Standard: | GB/T |
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Versatile Drilling for Metal and Plastics
These step drill bits are made from high-speed steel (HSS) and paired with a quick-change hex shank adapter for seamless compatibility with most cordless drills and impact drivers. Designed to drill through both metal and plastic, they're ideal for aluminum, brass, mild steel, PVC, and acrylic-delivering clean, burr-free holes without switching tools.
Multi-Diameter Drilling with Built-In Deburring
The step design allows multiple hole sizes in a single bit, eliminating the need for frequent bit changes. Each step transitions smoothly to the next and incorporates a deburring edge that leaves clean finishes-perfect for electrical panels, plastic enclosures, or HVAC ductwork.
Heat-Treated for Long Life
Each bit undergoes advanced thermal processing for enhanced durability. The HSS construction resists heat and wear under high-speed drilling conditions, ensuring long-term performance even with frequent use on metal surfaces.
Quick-Change Hex Shank for Efficient Workflow
The integrated 1/4-inch hex shank enables fast, secure bit swaps without the need for extra tools. Ideal for quick assembly tasks or job sites requiring rapid tool changes between applications.
Universal Applications Across Trades
Whether you're a technician, electrician, or DIY user, this hex shank step drill bit adapter is a time-saving solution for multi-size drilling tasks. Compatible with impact drivers and drill chucks, it's ideal for control panels, custom enclosures, conduit routing, and sheet fabrication.
1. Sharp and Durable HSS Cutting Edges for Fast Drilling
Crafted from industrial-grade high-speed steel (HSS), the bit features precision-ground cutting edges for smooth, low-resistance drilling in metal and plastic sheets. It delivers clean, burr-free holes with minimal effort-ideal for high-speed, repetitive work.
2. Anti-Slip Split Point Tip for Accurate Starting
Equipped with a self-centering split point tip, the bit starts precisely without the need for pre-punching. This ensures walk-free performance on curved or hardened surfaces, enhancing control and accuracy from the first contact.
3. Efficient Step-by-Step Chip Removal
Each step is engineered with optimized spacing and spiral flute design for fast chip evacuation. It prevents clogging, reduces heat buildup, and supports smooth, continuous drilling-extending tool life during long sessions.
4. Corrosion-Resistant Coating for Long-Term Use
The bit surface is treated with a protective finish (e.g., titanium coating), providing excellent resistance to rust and wear. This is especially valuable in workshop, garage, or job site environments with moisture or lubricant exposure.
5. Quick-Change Hex Shank for Fast Tool Swaps and Compatibility
Featuring a standard 1/4" (6.35mm) hex shank, this bit is compatible with most power drivers, electric drills, and impact tools. The quick-change design minimizes downtime and boosts efficiency-perfect for electricians, automotive techs, and fabricators needing multi-diameter hole cutting in tight or repetitive jobs.
1. Superior Wear Resistance & Heat Tolerance
Built from premium high-speed steel (HSS), this step drill bit with quick-change hex shank is engineered for durability under intense heat and friction. Whether drilling stainless steel, aluminum, or plastic, the bit maintains sharpness and structural integrity for long-lasting performance in demanding tasks.
2. Multi-Diameter Drilling with Smooth, Burr-Free Results
The stepped cutting design allows users to drill multiple hole sizes in one continuous pass-no need to change bits. Each step delivers clean transitions and burr-free finishes on metal and plastic, minimizing the need for post-drilling cleanup or deburring.
3. Fast Bit Changes with Universal Compatibility
Equipped with a standard 1/4" hex shank, the adapter enables rapid bit swaps and is compatible with most electric drills, cordless screwdrivers, and impact drivers. This quick-change feature improves workflow efficiency, especially during frequent bit changes or on-the-go tasks.
4. Reliable Performance Across Professions
Perfect for electricians, HVAC installers, metal fabricators, and DIYers, this versatile tool simplifies hole enlargement and size adjustments in panels, switch boxes, enclosures, and more. Its precision cutting and easy handling make it an essential addition to any professional or hobby toolkit.
1. CNC Precision Grinding for Clean Cuts
Our quick-change hex shank step drill bits are crafted using CNC precision grinding to deliver consistent step dimensions, razor-sharp cutting edges, and perfectly centered tips. This ensures smooth, accurate drilling in both sheet metals and plastics with minimal vibration-especially effective for high-speed or cordless applications.
2. Vacuum Heat Treatment for Wear Resistance
Each bit undergoes vacuum heat treatment, enhancing its core strength and surface hardness. This treatment improves resistance to wear, heat, and deformation-extending tool life when drilling stainless steel, aluminum, PVC, or ABS with quick-change drivers or impact drills.
3. Ultra-Fine Polishing for Efficient Chip Evacuation
A mirror-polished flute surface reduces friction and heat, ensuring better chip removal. This helps prevent clogging in narrow drilling applications, making the adapter-bit combination ideal for repeated, fast-paced drilling in field installations or workshops.
1. High-Purity HSS with RS ESR Reinforcement
We use ultra-clean high-speed steel produced via Electric Arc Furnace (EAF), Ladle Refining (LF), Vacuum Degassing (VD), and Rapid Solidification ESR (RS ESR). This results in enhanced durability and edge stability-critical when using quick-change drills under high torque or speed.
2. Advanced Thermal Conditioning
A combination of quenching, cryogenic treatment, and precision tempering boosts hardness up to HRC 67 while maintaining structural flexibility. This allows the adapter-integrated step bit to withstand aggressive driving in electrical or HVAC tasks.
3. Edge Retention Technology
RS ESR-treated cutting edges offer high cobalt saturation and carbide dispersion for extreme wear resistance-ensuring long-lasting performance even in fast-change, high-pressure use cases.
1. M35 HSS Core with Optional Materials
While M2 and M42 steel versions are available, our standard M35 high-speed steel is optimized for high-torque drills and offers excellent strength and longevity across metal and plastic substrates.
2. Quick-Change Hex Shank Integration
Engineered with a 1/4" (6.35mm) hex shank, the bit fits all standard quick-change systems, impact drivers, and cordless drills. This allows for instant insertion and removal-saving time and effort on the job site.
3. Optional Surface Coatings
Select from premium PVD coatings such as TiN, TiAlN, and TiCN to reduce wear, increase heat tolerance, and improve cutting performance. Ideal for repeated, high-load drilling with power tools.
Optimized Flute Structure: Fast chip clearance reduces heat and clogging, even during high-RPM drilling
Anti-Walk Tip Design: Enables precise starts without slipping on metal or plastic surfaces
Step-to-Step Cutting Precision: Smooth transitions reduce stress on tool and material
Compact Geometry: Perfect for confined spaces or angled access using right-angle adapters
Q1: What makes this quick-change hex shank step drill bit different from regular drill bits?
A: This bit combines a multi-diameter step design with a 1/4" hex shank for fast tool changes. Unlike traditional twist bits that require swapping between sizes, this step drill bit allows progressive hole enlargement using a single tool-ideal for users who need both speed and versatility in confined or fast-paced applications.
Q2: What materials can this step drill bit be used on?
A: Made from durable HSS, it's suitable for thin metals (aluminum, mild steel, brass), as well as plastic materials like PVC, acrylic, and ABS. It's perfect for electricians, HVAC technicians, and DIY users working on control panels, junction boxes, or plastic housings.
Q3: Does the hex shank fit all drill types?
A: Yes. The 1/4-inch (6.35 mm) quick-change hex shank is compatible with all standard cordless drills, impact drivers, and quick-release chucks, making it easy to swap bits quickly without extra tools.
Q4: Are different step ranges or coatings available?
A: Absolutely. We offer multiple size ranges such as 4-12 mm, 4-20 mm, and 4-32 mm. Options include TiN or TiAlN coatings for longer tool life, plus custom flute geometry or OEM packaging for professional users and resellers.
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