| Customization: | Available |
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| Customized: | Customized |
| Standard: | GB/T |
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Multi-Diameter Drilling with Portability and Precision
Engineered for Metal Drilling Applications
This step cone drill bit is crafted from industrial-grade high-speed steel (HSS) and specifically designed for cutting through thin metal sheets, including stainless steel, aluminum, and mild steel. Its conical stepped profile enables smooth, graduated hole sizing without the need for multiple bits-ideal for mobile jobsites and efficient workshop use.
Clean, Burr-Free Drilling with Maximum Control
Featuring a sharp HSS cutting edge and a multi-fluted design, the bit ensures efficient chip evacuation, low vibration, and precise hole sizing. It produces clean, burr-free finishes-perfect for electrical panels, metal fabrication, HVAC tasks, and automotive work.
Heavy-Duty HSS Construction
Made from heat-treated premium HSS, the bit offers excellent hardness, wear resistance, and thermal stability. It holds up under high-speed operation and heavy-duty workloads, resisting dulling, bending, or deformation-suitable for professionals and serious DIYers alike.
1/4" Hex Shank for Cordless Power Drill Compatibility
Designed with a standard 1/4-inch (6.35mm) hex shank, this bit locks securely into cordless drills and impact drivers for fast bit changes and slip-free drilling. The hex shank design ensures excellent torque transmission, making it an ideal match for portable drilling applications.
Versatile, Time-Saving Design
Drill multiple hole sizes with a single bit thanks to the step design-reducing downtime and increasing productivity. Whether you're working on sheet metal, plastic, PVC, or layered materials, this drill bit delivers efficient, accurate results across various job types.
Sharp and Durable HSS Cutting Edges
Manufactured from premium high-speed steel (HSS), this step drill bit provides outstanding cutting strength, thermal resistance, and wear durability. It maintains sharpness even during prolonged high-speed cordless drilling, delivering clean, accurate holes in stainless steel, aluminum, carbon steel, and more.
Stepped Cone Design for Versatile Hole Sizes
The multi-step profile allows you to drill multiple hole diameters using a single bit-ideal for tasks like switchgear panels, junction boxes, and sheet metal enclosures. Each step is clearly laser-etched with size markings for fast, accurate identification, especially useful in mobile or field environments.
Optimized Spiral Flute for Clean Chip Evacuation
The spiral flute design ensures smooth chip removal and heat dissipation, reducing jamming and maintaining cutting efficiency. This keeps the bit cooler and sharper for longer-ideal for continuous drilling tasks using cordless power tools.
Corrosion-Resistant and Polished Surface
A polished anti-corrosion finish protects the bit from rust, humidity, and harsh working conditions. It's engineered for professional use in HVAC, automotive repair, electrical work, and general fabrication-indoors or out.
1/4" Hex Shank for Cordless Tool Compatibility
Equipped with a standard 1/4-inch hex shank, this bit fits securely in cordless drills and impact drivers, offering quick-change convenience and reduced slippage. Lightweight yet rugged, the bit's balanced design minimizes vibration and operator fatigue during handheld operation.
Superior Performance with High-Speed Steel (HSS)
Made from industrial-grade HSS, this step drill bit delivers outstanding heat and wear resistance. It stays sharp even after repeated use in high-speed cordless drills, making it perfect for drilling stainless steel, carbon steel, aluminum, and other tough metals.
Multi-Diameter Drilling with a Single Bit
The stepped cone design enables you to drill multiple hole sizes using just one bit-saving time and reducing tool changes. Ideal for tasks like modifying electrical panels, control boxes, or sheet metal enclosures, especially in mobile or field-based jobs using battery-powered drills.
1/4-Inch Hex Shank for Cordless Drill Compatibility
Equipped with a standard 1/4-inch hex shank, this bit is designed for quick-change compatibility with most cordless drills and impact drivers. The hex shank ensures a secure grip and prevents slippage, delivering efficient power transfer during handheld drilling.
Built for Professionals and Demanding DIY Users
Whether you're a tradesperson, HVAC installer, electrician, or hands-on DIYer, this bit offers the precision and reliability you need. Smooth chip evacuation, precision-ground step transitions, and vibration control provide clean, accurate drilling in both metal and plastic materials.
CNC Precision-Ground Step Geometry
Each step drill bit is CNC-machined with sharp, concentric cutting edges to ensure stable and accurate drilling in sheet metals such as stainless steel, aluminum, and mild steel. Its precision step design prevents bit walking and allows for smooth entry without requiring pilot holes-ideal for portable cordless drilling.
Heat-Treated HSS Core for Longevity
Made from industrial-grade high-speed steel (HSS) and heat-treated under tightly controlled conditions, this bit delivers excellent edge retention and toughness. Perfect for high-RPM cordless drills where consistency and tool durability are critical in panel work, HVAC installations, or mobile fabrication jobs.
Polished Spiral Flute for Clean Chip Removal
The polished spiral flute ensures effective chip evacuation, reduces friction, and minimizes heat buildup-making it ideal for continuous drilling with cordless power tools. The smooth operation extends bit life while ensuring cleaner, burr-free holes.
High-Purity HSS Core with Vacuum Refining
Crafted using EAF and vacuum degassing techniques, the bit's high-purity steel core provides excellent wear resistance and fracture toughness. Built for demanding environments like automotive repair, electrical work, and field fabrication.
Balanced Hardness with Fracture Resistance
Through advanced quenching and tempering, the bit achieves an ideal combination of hardness and ductility-critical for resisting cracking or premature wear during heavy-duty use on metal surfaces.
Hex Shank Design for Secure Drill Fit
The 1/4-inch hex shank ensures quick and secure attachment to most cordless drills and impact drivers. It eliminates slippage and allows for faster bit changes-ideal for on-site or ladder-based work where speed and efficiency matter.
Multi-Step Versatility in One Bit
The stepped design allows for drilling multiple hole sizes with a single bit, reducing the need for bit changes. Great for applications like conduit entry, cable routing, junction boxes, and switchgear mounting.
Custom Specifications Available
Flute lengths, step diameters, and surface coatings (TiN, TiAlN) can be customized to suit specific cordless drilling needs. Enhanced coatings further extend life under high-temperature, high-load drilling conditions.
High-Efficiency Flute Design for Cordless Chip Ejection
This step drill bit adopts a multi-flute design specifically optimized for cordless power drills. The wide, open spiral flutes allow rapid chip clearance from stainless steel, aluminum, and galvanized sheets-minimizing heat buildup and reducing the risk of clogging during continuous portable drilling operations.
Optimized Cutting and Step Angles for Precise Metal Penetration
The CNC-machined cutting edges and step transitions are engineered to reduce axial force and improve control. These precise angles provide clean, progressive cuts with reduced burring or edge distortion, even when drilling layered or harder metal materials with compact cordless tools.
Hex Shank for Quick-Change Cordless Compatibility
Fitted with a standard 1/4" hex shank, this step drill bit locks securely into most cordless drills and impact drivers. The anti-slip design enables quick bit changes and ensures stable, wobble-free rotation-a major advantage for on-site tasks requiring mobility and fast setup.
Professional Coating Options for Tough Environments
Compatible with advanced coatings for enhanced durability:
TiAlN (Titanium Aluminum Nitride): Superior heat and oxidation resistance, ideal for high-speed metal drilling.
TiCN (Titanium Carbonitride): Enhanced surface hardness for drilling abrasive metals or frequent-use applications.
These coatings maintain edge sharpness, reduce friction, and extend tool life-making the bit a reliable choice for electrical box installation, HVAC panel work, and automotive fabrication with cordless equipment.
A: Unlike conventional twist drills, this hex shank step drill bit features a conical stepped design that allows for drilling multiple hole sizes with a single bit. Its 1/4" hex shank offers quick-change compatibility with cordless drills and impact drivers, ensuring secure grip and reduced slippage. CNC-ground from high-speed steel (HSS), it delivers excellent heat resistance, sharpness, and precision-perfect for clean, burr-free holes in sheet metals like stainless steel and aluminum.
A: This bit is optimized for drilling thin to medium-gauge metals such as stainless steel, carbon steel, galvanized steel, aluminum, and brass. It also performs well on plastics, PVC, and composite panels-making it suitable for electrical work, HVAC installations, control cabinets, automotive sheet metal, and DIY projects.
A: Yes. This drill bit comes in various step configurations (e.g., 4-12mm, 4-20mm, 4-32mm), with laser-etched markings for easy size reference. Customizations include unique step ranges, flute designs, TiN/TiAlN coatings for longer life, and shank types (round, hex, tri-flat). OEM and ODM customization is fully supported.
A: Absolutely. The 1/4" hex shank is specifically designed for cordless drill chucks and quick-change adapters. Its HSS construction resists wear at high speeds, while the balanced geometry ensures stable drilling even under portable, battery-powered operation-ideal for jobsite use where mobility and efficiency are critical.
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