Carbide Jobber Drill 3.91mm Diameter
Product Overview
If you're after precision and durability in your drilling tasks, our Carbide Jobber Drills are just what you need. They’re designed to make drilling through tough materials smoother and more efficient.
Ideal for metalworking pros and fabricators who want a reliable tool that won’t quit halfway through the job. Whether it's a quick fix or a prolonged project, these drills maintain top performance every step of the way.
Featuring a 2 flute design with a 20-degree helix and a split point for easy starts, these drills will quickly become your go-to. Ready to upgrade your toolkit? These Carbide Jobber Drills mean serious business on the shop floor.
Key Features
- Precision Carbide Jobber Drill design for lasting durability
- 2-flute configuration ensures efficient material removal
- 20-degree helix angle boosts smooth cutting action
- 118-degree four-facet split point reduces walking and enhances accuracy
- Split point allows for easy and precise drill starts
- Tight diameter tolerance of +.000/-.0005 for consistent performance
- Flute length of 1-3/8 inches for deep drilling capability
- Overall length of 2-1/2 inches providing stability and control
- Metric size of 3.91 mm (0.1540 inches) fits a variety of applications
- Made for standard jobber drill holders compatible with a wide range of machines
Specifications
- Shape / Type: Standard Jobber Drill
- Cut Type: Carbide Jobber Drill
- Diameter: 0.1540 inches (3.91 mm)
- Flute Length: 1-3/8 inches
- Overall Length: 2-1/2 inches
- Helix Angle: 20 degrees
- Point Angle: 118 degrees, four-facet split point
- Tolerance: +.000/-.0005 inches
- Flute Count: 2
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30394
Built for Consistency and Long-Term Success
Our Carbide Jobber Drills aren’t just about the specs on paper—they’re about giving your business reliable, repeatable performance day in and day out. By reducing drill bit replacements thanks to their durable carbide construction and tight tolerances, you’ll save time and money over the long haul. Less downtime for tool changes translates to smoother operations and fewer interruptions on your production floor, helping you meet deadlines and keep customers happy.
Trusted USA-Made Quality You Can Count On
Manufactured right here in the USA, these drills come from a brand known for innovation and quality in cutting tools. Burrs4Less has earned its reputation by delivering consistent, high-grade tools that meet professional demands. Using American-made tools like these means fewer supply chain headaches, faster replacements, and the peace of mind that only comes with trusted craftsmanship. Plus, our commitment to quality helps you maintain compliance and operational efficiency, particularly in critical metalworking applications.
Case Study: Real Business, Real Results
Jacksonville, FL – A local manufacturing shop needed to upgrade their drilling tools to improve precision in automotive part fabrication.
"Switching to the Carbide Jobber Drills from Burrs4Less significantly reduced our setup times and improved hole accuracy across the board. It’s been a solid investment for us."
Rachel Thompson – Production Manager
Boosted drilling accuracy by 35% while reducing drill replacement frequency.
Why the Four-Facet Split Point Boosts Your Drilling Accuracy
The four-facet split point isn't just a fancy term—it’s the secret behind sharp, quick starts when you set your drill bit down on the material. Imagine trying to start a drill bit spinning without it slipping or 'walking' around. The split point acts like a guide, anchoring the bit and keeping it steady so your holes go exactly where intended, right from the get-go. This means less frustration and fewer mistakes, especially important when precision is everything.
Installation and Maintenance Guide
Setting It Up
- Ensure the drill chuck is clean and free from debris before inserting the bit.
- Insert the drill bit fully into the chuck to maximize grip and reduce wobble.
- Tighten the chuck securely using the key or hand-tighten if your drill is keyless.
- Check the drill bit alignment to avoid uneven wear or poor hole quality.
- Wear safety goggles and gloves before starting your drilling tasks.
Keeping It Going
- Regularly clean the drill bit to remove metal shavings and debris after each use.
- Inspect the bit for signs of wear or chips before use and replace if damaged.
- Use appropriate speeds and feeds to prolong tool life and avoid overheating.
- Store drill bits in a dry, organized case to prevent damage.
- Lubricate your drill or the material being drilled to reduce friction when needed.
Frequently Asked Questions
Q: What materials can these carbide jobber drills be used on?
They are ideal for a variety of hard materials including steel, stainless steel, cast iron, and non-ferrous metals.
Q: What is the advantage of the split point design?
The split point reduces walking and allows for precise, clean starts without the need for a pilot hole.
Q: What does the 20-degree helix angle do?
It helps with chip removal and smooth cutting, especially in harder materials.
Q: Can I use this drill in a handheld drill or only in machines?
They’re suitable for both handheld drills and machine setups as long as the chuck size matches.
Q: What is the tolerance on the drill diameter?
The diameter tolerance is very precise: +.000 / -.0005 inches.
Q: How is the overall length relevant?
The 2-1/2 inch length balances control and reach for standard drilling tasks.
Q: How do I maintain these drills to extend lifespan?
Regular cleaning, proper cutting speeds, and lubrication help maintain sharpness and performance.
Q: Are these drills compatible with standard jobber drill holders?
Yes, they are designed specifically for standard jobber drill holders.
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Q: How do I know when it’s time to Replace or Resharpen the burr?
Replace or Resharpen it when you notice decreased cutting efficiency or visible wear on the cutting edges.
Why Choose Burrs4less?
Discover top reasons to pick our carbide burrs for your projects. Factory-direct quality at wholesale prices.
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Premium Quality
Pro-grade tungsten carbide burrs for durable, precise work.
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Affordable Pricing
Wholesale rates from USA manufacturer, high performance.
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Fast & Free Shipping
24-hour shipping, free on $100+ orders.
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Expert Guidance
Team assists in picking ideal burr for materials.
Ready for Order
Don’t wait to experience the precision and durability of our Carbide Jobber Drills. Order today and see how these tools can improve your workflow and quality, helping you get the job done right the first time.
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