Are your drill bits walking when starting a hole? Having difficulty penetrating harder metals? Wearing out too quickly? Or just needing a more dependable bit for regular shop use?
The Drillco 400N HSS Black & Gold Jobber Drills Series is built to deliver reliable performance, cleaner starts, and longer-lasting durability across demanding metalworking applications.
A Heavy-Duty Drill Bit Built for Metalworking
The Drillco Nitro® Series is a heavy-duty drilling line designed for metalworking professionals who need dependable performance across a wide range of applications. The line includes multiple drill lengths and configurations to match different drilling needs, with the 400N Series serving as the versatile jobber-length option for everyday metalworking.
Built for demanding materials and regular shop use, Nitro® drill bits are designed to deliver consistent performance whether used by hand, in portable hand drills, or in machine applications, CNC Machines & Drill Presses).
Features of the Drillco 400N Drill Series
- All Nitro® drills are made from premium grade High Speed Steel
- Recommended for heavy-duty drilling in a wide range of material groups, including stainless steel
- Body and flute are black and gold surface treated for maximum lubricity
- Split Point ensures ease of penetration and reduces “walking” when starting a hole
- A complete line of drills available in Jobber Length (400N, 440N, 480N), Screw Machine Length (300N), Mechanic’s Length (350N), and S&D’s (1000N) & sets
- 3-flat shank on mechanic's length drill reduces slippage in the drill chuck
What Makes the Drillco 400N Different?
135° Split Point
Black & Gold Surface Treatment
Heavy-Duty HSS Construction
PRO TIP: Extend the Life of Your Drill Bits
Using the complete WALTER line of ready-to-use metal cutting lubricants can help extend drill life by up to 5x by deflecting heat during machining.
Think you could benefit from Drillco 400N Nitro® Series Drill Bits?
Contact our team at C.E. Thurston & Sons, and we will help you find the right solution for your application, workflow, and production goals.
When Should You Choose a Jobber-Length Drill Bit?
A jobber-length drill bit is the standard choice for general-purpose metal drilling when you need a balance of reach, control, and versatility. If you’re currently using standard HSS drill bits, metal drill bits, or stainless steel drill bits and are looking for a more durable option for demanding shop work, a heavy-duty jobber drill may be a better fit.
Compared with shorter mechanics-length drill bits, which provide added rigidity, or extra-length drill bits designed for additional reach, jobber-length drills work well across a wide range of everyday applications. The Drillco 400N Nitro® Series combines premium-grade high-speed steel, a split point, and black-and-gold surface treatment to provide a versatile option for professional metalworking.
Is the Drillco 400N Right for Your Application?
The Drillco 400N Nitro® Series may be a strong fit if you:
- Regularly drill steel, stainless steel, or other metals
- Need better control when starting holes
- Want a bit suitable for both handheld and machine applications
- Need a durable drill for frequent or heavy-duty work
Frequently Asked Questions
Jobber-length bits are the standard, general-purpose option. Mechanics-length bits are shorter and more rigid for improved control. Extra-length bits provide additional reach when deeper holes or access is required.
A split point helps reduce walking when starting a hole and improves accuracy, particularly on flat or curved metal surfaces.
Drillco offers drill-bit options for metalworking applications, including steel, stainless steel, and other materials, depending on the bit’s material and surface treatment.
We’re Here to Help
Contact Your Nearest Team
At C.E. Thurston, we don’t just sell products. Our team helps customers choose the right equipment based on the demands of their project. If you’re considering the Drillco 400N Drill Bits or want help selecting the right solution, our team is ready to help.
Contact the C.E. Thurston team to check availability, request pricing, or discuss the best grinding wheel for your application.
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