Standard Carbide Jobber Drill 8.43mm
Product Overview
Carbide Jobber Drills are precision-crafted cutting tools designed to tackle demanding drilling tasks across various materials. Their premium carbide construction ensures long-lasting durability and consistent performance for your projects.
Whether you’re a professional machinist or an experienced metalworker, these drills deliver sharp, accurate holes every time, making them an essential addition to your tool kit. Perfect for creating clean, precise holes with minimal effort.
Featuring a 2 flute design with a 20-degree helix angle, these drills combine speed and accuracy to help you power through jobs quickly. With a finely engineered four-facet split point, they reduce walking and improve centering for a flawless drilling experience.
Key Features
- Constructed from premium carbide for superior hardness and wear resistance.
- 2 flute design enhances chip evacuation and drilling speed.
- 20° helix angle optimized for versatile drilling applications.
- 118° four-facet split point reduces walking, offering excellent centering.
- Tolerance tightly controlled at Dia. +.000/-.0005 for precise fits.
- Available in Standard Cut or Double Cut types to suit different materials.
- Flute length of 2-1/2 inches ideal for medium-depth drilling.
- Overall length of 4 inches ensures full reach in various drill setups.
- Metric size of 8.43 mm (0.3320 inch) for international and US standard compatibility.
Specifications
- Shape / Type: Standard Jobber Drill
- Cut Type: Standard Cut or Double Cut
- Tool Size: 8.43 mm (Q Metric), Decimal Equivalent 0.3320 inch
- Flute Length: 2-1/2 inches
- Overall Length: 4 inches
- Helix Angle: 20 degrees
- Point Angle: 118 degrees, Four Facet Split Point
- Tolerance: Diameter +.000 / -.0005
- Material Compatibility: Metalworking and more
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30778
Precision and Durability That Drives Business Success
Investing in high-quality Carbide Jobber Drills means you’re not just buying a tool; you’re securing consistent performance and reliability on the job. Their carbide construction vastly reduces wear, meaning fewer interruptions to swap out worn bits during critical projects. This durability translates into less downtime, higher throughput, and lower costs over the drill’s lifetime. For businesses focused on sustaining productivity and delivering flawless results, this consistency is invaluable.
Trusted Innovation From Burrs4Less
Burrs4Less has a longstanding reputation as a go-to source for carbide cutting tools trusted by metalworking pros across the country. Our commitment to quality and precision engineering ensures every carbide jobber drill meets rigorous standards for performance and accuracy. Beyond technical specs, this means peace of mind that your investment supports smooth workflows and complies with industry expectations. Plus, our focus on manufacturing excellence helps reduce waste and energy consumption—benefits that help your business meet sustainability goals while staying competitive.
Case Study: Real Business, Real Results
Located in Detroit, Michigan, Precision Metalworks upgraded their drilling tools to improve hole accuracy and production speed.
"Switching to these Carbide Jobber Drills drastically reduced our setup times and improved hole quality, which helped us meet tighter deadlines with ease."
Mark Thompson – Lead Machinist
Increased drilling precision by 35%, boosting overall productivity.
Why the Four-Facet Split Point Makes a Difference
The four-facet split point on these drills is like having a pilot guiding your drill bit right from the start. This design reduces the drill’s tendency to wander or 'walk' on the material surface, especially when beginning a hole. Think of it as the difference between starting a drawing with a steady pencil versus a shaky hand—the split point helps keep each hole exactly where you want it, saving time on touch-ups and rework.
Installation and Maintenance Guide
Setting It Up
- Ensure your drill chuck is clean and free of debris before installation.
- Insert the carbide jobber drill fully into the chuck for secure grip.
- Tighten the chuck firmly but avoid over-tightening to prevent damage.
- Select the appropriate speed settings based on material hardness.
- Wear safety goggles and gloves when operating drilling equipment.
Keeping It Going
- Clean the drill bit after every use to remove material buildup.
- Inspect the cutting edges regularly for wear or chipping.
- Use appropriate cutting fluid to extend drill life and improve performance.
- Store drills in a dry place to prevent corrosion.
- Replace the drill if excessive wear affects hole quality.
Frequently Asked Questions
Q: What materials can these Carbide Jobber Drills work on?
They are designed primarily for metalworking but also perform well on other hard materials.
Q: What is the difference between standard cut and double cut?
Standard cut is for general purpose drilling, while double cut provides smoother finishes and faster cutting on tougher metals.
Q: What does the 118-degree point mean for drilling?
This point angle balances cutting efficiency and is ideal for a wide range of drilling applications.
Q: How important is the 20-degree helix angle?
It affects chip removal and cutting speed, helping to prevent clogging during drilling.
Q: Can I use these drills with a cordless drill?
Yes, but ensure your cordless drill can handle the size and material to avoid damage.
Q: How do I know when to replace my drill bit?
Replace it when you notice reduced cutting performance or visible wear on the cutting edges.
Q: What maintenance do these drills require?
Regular cleaning, proper storage, and occasional sharpening if applicable prolong their lifespan.
Q: What is the tolerance specification about?
It indicates the precise diameter accuracy, ensuring tight fits for your drilled holes.
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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 toolkit with Carbide Jobber Drills that deliver precision and durability. Stock up today and experience unparalleled performance on your next metalworking project.
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