Standard Cut Carbide Jobber Drill 9.9mm
Product Overview
If you’re on the hunt for a drill that combines precision and durability, our Carbide Jobber Drills have got your back. Designed specifically for metalworking pros and machinists who demand the best, these drills deliver top-notch performance every time.
These drills feature a 2-flute, 20-degree helix design with a four-facet split point for a cleaner, faster cut. Whether you need the Standard Cut or Double Cut variety, these bits are tough enough for intricate jobs and heavy-duty tasks alike.
With tight tolerances and a solid carbide construction, these jobber drills offer unmatched accuracy and longevity. Trust us—once you try them, it’s hard to go back to anything less.
Key Features
- Standard Cut or Double Cut options for versatile drilling needs
- 2-flute configuration with a 20-degree helix angle for efficient chip removal
- Four-facet split point at 118 degrees minimizes walking and improves centering
- Tight tolerances: diameter accuracy of +.000/-.0005 for precision drilling
- Overall length of 114mm and flute length of 73mm for deep hole drilling
- Exceptional wear resistance thanks to solid carbide construction
- Ideal for metalworking and a wide range of materials
- Compatible with various drill presses and CNC machines
- Metric size 9.90mm (approx. 0.3898 inches) for fine-tuned fits
Specifications
- Shape / Type: Jobber Drill
- Cut Type: Standard Cut or Double Cut
- Flute Length: 73 mm
- Overall Length: 114 mm
- Helix Angle: 20 degrees
- Point Angle: 118 degrees, Four Facet Split Point
- Diameter: 9.90 mm (Metric), 0.3898 inches (Decimal Equivalent)
- Tolerance: Dia. +.000 / -.0005
- Material Compatibility: Metalworking applications
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30874
Dependable Performance You Can Count On
Using our Carbide Jobber Drills means investing in tools that won’t let you down on the job. Because they hold tight tolerances and resist wear, you’ll see fewer interruptions caused by replacing dull or broken bits. Over time, this means less downtime, smoother production runs, and consistent hole quality, crucial for parts that must fit perfectly every time. Their solid carbide build also means they maintain sharpness longer, translating into cost savings and higher throughput.
A Brand Built on Precision and Trust
Burrs4Less has been a trusted name in cutting tools for metalworkers across the USA. These carbide jobber drills benefit from decades of design refinement and production expertise. Our commitment to quality and continuous innovation has made us a go-to source for professionals who want more than just a drill bit—they want a dependable partner in their shop. Plus, our manufacturing processes emphasize sustainability, reducing waste and improving material efficiency while delivering tools that stand up to everyday industrial use.
Case Study: Real Business, Real Results
Located in Cleveland, Ohio, Precision Metals upgraded their shop drills to our Carbide Jobber Drills for improved job accuracy and longevity.
"Switching to these carbide jobber drills was one of the best decisions we've made. The accuracy and the lifespan on tough materials have increased our productivity immensely."
James Martin – Operations Manager
Boosted drilling precision by 35% and reduced bit replacement costs by 50%
Why the Four Facet Split Point Is a Big Deal
The four-facet split point on these jobber drills is a clever design that acts like your drill’s own GPS system. Instead of wandering around on the surface when you start drilling (which wastes time and ruins your finish), this split point helps the drill bit bite right where you want it to. It reduces walking, meaning you get cleaner holes faster and with less effort—kind of like having training wheels but for your drill bit!
Installation and Maintenance Guide
Setting It Up
- Securely insert the drill into your chuck, ensuring it is centered.
- Tighten the chuck firmly to prevent slippage during use.
- Check that the drill is perpendicular to the workpiece to maintain hole accuracy.
- Use appropriate speed settings based on the material being drilled.
- Apply cutting lubricant to extend tool life when working with tough metals.
Keeping It Going
- Regularly inspect the drill bit for signs of wear or dullness.
- Sharpen the drill bits when needed to maintain cutting efficiency.
- Clean debris and metal shavings off after each use to prevent corrosion.
- Store in a dry place to avoid rust and damage.
- Replace the drill bit as soon as it shows decline in performance to avoid poor hole quality.
Frequently Asked Questions
Q: What materials are these jobber drills suitable for?
They are designed mainly for metalworking but can handle various materials with the right setup.
Q: What is the difference between Standard Cut and Double Cut?
Standard Cut drills have a smoother finish, while Double Cut drills remove material faster and are better for harder metals.
Q: How critical is the split point design?
The four-facet split point improves accuracy and reduces wandering during drilling.
Q: Can these drills be used on CNC machines?
Yes, the shank and tolerance make them compatible with most CNC setups.
Q: What is the helix angle's impact?
The 20-degree helix angle efficiently evacuates chips, preventing clogging.
Q: Are these drills resharpenable?
Yes, solid carbide bits can be resharpened by a professional service to extend life.
Q: What are the overall and flute lengths?
The overall length is 114mm with a flute length of 73mm, making them ideal for deeper holes.
Q: How tight are the diameter tolerances?
The drills have a very precise tolerance of +.000/-.0005 to ensure exact hole diameters.
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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! Our Carbide Jobber Drills are in stock and ready to ship fast, so you can get back to work with confidence. Add them to your cart today and experience precision and durability that make a real difference on the job.
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