Carbide Jobber Drill 4.3mm Diameter
Product Overview
Carbide Jobber Drills are the go-to choice for professionals who demand precision and durability in their drilling tasks. These drills are specially designed for metalworking applications where accuracy and tool life matter.
Crafted with a 2-flute design and a sharp four-facet split point, these drills reduce walking and ensure cleaner, faster starts every time. The 20-degree helix angle optimizes chip evacuation, keeping your work efficient and your drill running cooler.
If you're looking to upgrade your drilling performance and minimize downtime, these drills deliver consistent results with tight tolerances that guarantee repeatable accuracy on every job.
Key Features
- Made from solid carbide for exceptional hardness and durability
- 2 flute design for optimized chip removal
- 20-degree helix angle to reduce heat buildup and extend tool life
- 118-degree four-facet split point for precision starts and reduced walking
- Tight tolerance: Diameter +0/-.0005 for accuracy you can trust
- Flute length of 41mm allows deep drilling with minimal tool flex
- Overall length of 70mm balances reach and rigidity
- Ideal for drilling in tough metals and alloys
- Compatible with standard jobber drill chucks
- ISO metric size 4.3mm (decimal 0.1693")
Specifications
- Shape / Type: Standard Jobber Drill
- Cut Type: Carbide Jobber Drill
- Tool Size: 4.30 mm (0.1693")
- Flute Length: 41 mm
- Overall Length: 70 mm
- Helix Angle: 20 degrees
- Point Angle: 118 degrees Four Facet Split Point
- Tolerance: Diameter +0/-.0005 inches
- Material Compatibility: Metalworking, hard alloys
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30430
The Unsung Value of Burrs4Less Carbide Jobber Drills
Going beyond just specs, these carbide jobber drills offer long-term reliability that keeps your workflow consistent day after day. Reduced heat buildup means less tool wear and fewer interruptions from having to swap out dull drills. That translates directly into saved time and money on production floors. Plus, their uniform quality from Burrs4Less ensures you get the same precision with every batch which builds trust in your tooling investments.
Burrs4Less has built a strong reputation for delivering high-performance cutting tools that align with real-world craftspeople’s needs. This drill line's careful manufacturing and material choices bring durability and toughness needed in demanding industrial environments. They’re designed for repeatable, reliable results so you can focus on the job without worrying about tool failure or inconsistent cuts. All in all, these drills represent a smart buy for any metalworking shop aiming for top efficiency and repeatability.
Case Study: Real Business, Real Results
Chicago-based Precision Metalworks needed a more reliable drill to increase throughput on tough stainless steel parts.
"Switching to the Burrs4Less Carbide Jobber Drills cut our rework rates by half and boosted our production speed significantly. These drills stay sharper way longer than what we used before."
Emily Diaz – Production Manager
Increased output by 35% with better drill life and less downtime.
Why the Four-Facet Split Point Improves Your Drilling Precision
The four-facet split point on this drill is like having a sharper pencil tip that stops you from slipping when you start to write. It reduces walking—the annoying wobbling or slipping at the start of drilling—which means you can drill exactly where you want without fumbling around. This is especially helpful when working on small or precise components where even a tiny slip can ruin the part. By starting smoothly, this feature helps save time and material, making your work more efficient and stress-free.
Installation and Maintenance Guide
Setting It Up
- Ensure your drill chuck is clean and free of debris before mounting the drill.
- Firmly secure the drill in the chuck to prevent slipping during use.
- Select the appropriate speed and feed settings based on material hardness.
- Use cutting fluid to reduce heat and prolong drill life.
- Check alignment carefully for precision drilling starts.
Keeping It Going
- Regularly clean drills after use to remove metal shavings.
- Inspect for dullness or chipping before each job.
- Sharpen or replace drills promptly to maintain quality.
- Store drills in a protective case to avoid damage.
- Avoid excessive heat by using proper feed rates and cooling methods.
Frequently Asked Questions
Q: What materials are these Carbide Jobber Drills best suited for?
They're ideal for drilling hard metals and alloys, including stainless steel and aluminum.
Q: What is the significance of the 118-degree four-facet split point?
It ensures accurate drill starts by reducing walking and improves chip evacuation.
Q: How critical is the tolerance specification of +0/-.0005?
This tight tolerance guarantees highly consistent hole diameters for precision work.
Q: Can these drills be used in handheld drill setups?
Yes, but for best results and safety, use with a compatible drill press or machine.
Q: What cutting speeds are recommended?
Cutting speeds vary by material; typically slower speeds for hard metals with coolant help extend tool life.
Q: How do I know when to replace the drill?
Replace when you experience dullness, chipping, or poor hole quality.
Q: Why is carbide preferred over other materials?
Carbide drills last longer and handle high heat better than high-speed steel.
Q: What benefits does the 20-degree helix angle provide?
It helps efficiently eject chips while reducing friction and heat.
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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 upgrade your drilling game with Burrs4Less Carbide Jobber Drills. Add them to your toolbox today and experience drilling precision that lasts longer and performs better. Place your order now and keep your projects moving forward without a hitch.
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