Standard Cut Carbide Jobber Drill 21/64
Product Overview
If you’re tackling metal fabrication or detailed woodworking, these Carbide Jobber Drills are crafted to help you drill with precision and efficiency every time. They’re suited for professionals who demand durability and accuracy.
Designed with a 2 flute, 20 degree helix and an industry-standard 118-degree four-facet split point, these drills slice through materials with less effort and more control. Whether it’s a tight tolerance or a tricky angle, they’ve got you covered.
Plus, with a tolerance of diameter +.000/-.0005, every hole you drill will meet exact specifications. Ready to upgrade your toolkit? These jobber drills promise steady performance and a longer lifespan.
Key Features
- Standard or double cut types available for versatile applications
- 2 flute design with 20-degree helix for smooth chip evacuation
- 118-degree four-facet split point reduces walking and improves centering
- Precision tolerance of diameter +.000/-.0005 for consistent hole sizes
- Flute length of 2-1/2 inches ideal for medium-depth drilling
- Overall length of 4 inches suits a variety of drilling machines
- Robust carbide construction ensures high wear resistance
- Metric size 8.33mm (21/64 inch) fits standard drill chucks
- Suitable for use on metals and some harder materials
- Manufactured to meet professional industrial standards
Specifications
- Shape / Type: Standard Jobber Drill
- Cut Type: Standard Cut or Double Cut
- Head Diameter: 21/64 inch (8.33 mm)
- Shank Diameter: 21/64 inch (8.33 mm)
- Flute Length: 2-1/2 inches
- Overall Length: 4 inches
- Material Compatibility: Metalworking and woodworking materials
- Point Angle: 118-degree Four Facet Split Point
- Helix Angle: 20 degrees
- Tolerance: Diameter +.000/-.0005
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30770
Innovation that Keeps Your Drills Sharp and Reliable
These Carbide Jobber Drills aren’t just precise—they deliver lasting value for busy workshops. Thanks to their high-quality carbide construction, they resist wear far better than regular steel drills. This means fewer replacements, less downtime, and ongoing cost savings. Their consistent performance helps maintain part quality, so your customers get a product that meets tough specifications every time.
Trusted Craftsmanship Backed by Burrs4Less
Backed by Burrs4Less’ reputation for delivering professional-grade tools, these drills reflect decades of industry expertise and innovation. Proudly made in the USA, they go beyond just standard drilling tools by combining design and material technologies that meet evolving business needs. Their energy-efficient manufacturing and the extended tool life contribute to a greener footprint, while their sturdy build stands up to everyday shop challenges with steady results.
Case Study: Real Business, Real Results
Seattle-based Precision Metalworks upgraded their drill bits to Carbide Jobber Drills for improved hole quality and faster production.
"Switching to these drills cut our defect rate in half and boosted throughput by 35%. The consistency on every piece is remarkable and saves us costly rework."
Jessica Harper – Production Manager
Increased output by 35% and reduced defects significantly
Why the Four-Facet Split Point Makes a Difference
The 118-degree four-facet split point isn’t just a fancy term—it’s what helps the drill find its center and start cutting accurately. Think of it like the sharp tip on an arrow guiding the arrow into the target. This design prevents the drill from wandering around the surface and lets you drill right where you want, saving time and avoiding mistakes.
By splitting the point, it reduces the force needed to penetrate materials and keeps the bit from slipping—even on tougher metals. This means cleaner holes and longer-lasting drill bits.
Installation and Maintenance Guide
Setting It Up
- Ensure your drill chuck matches the 21/64 inch shank diameter for a secure fit.
- Clean the drill holder to remove debris before inserting the drill bit.
- Tighten the chuck firmly but avoid overtightening which can damage the bit.
- Check that the drill bit is perfectly straight and seated properly before use.
- Select the correct cut type (standard or double cut) based on your material.
Keeping It Going
- Clean the drill bit after every use to prevent build-up and rust.
- Use cutting fluid when drilling metals to extend tool life and improve cutting.
- Inspect the cutting edges regularly for dullness or chipping.
- Sharpen or replace bits as needed to maintain precision.
- Store bits in a dry place to prevent corrosion and damage.
Frequently Asked Questions
Q: What materials can these jobber drills be used on?
They’re designed primarily for metalworking but can also be used for woodworking and some composite materials.
Q: What does the four-facet split point do?
It helps center the drill quickly and prevents it from walking on the material as you start drilling.
Q: What are the cut type options?
You can choose between standard cut or double cut versions, depending on the application.
Q: What drill size is this bit?
The diameter is 21/64 inches or 8.33 millimeters.
Q: What does the tolerance +.000/-.0005 mean?
It means the drill size is controlled very precisely and can vary slightly within five ten-thousandths of an inch.
Q: Can I use cutting fluid with this drill?
Yes, cutting fluid is recommended especially for metal drilling to extend tool life.
Q: How long is the flute length?
The flute length is 2-1/2 inches, ideal for medium-depth holes.
Q: Is this drill compatible with my drill press?
As long as your drill chuck fits a 21/64 inch shank diameter, it will be compatible.
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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 for your next project to stall—equip your workshop with these reliable Carbide Jobber Drills today. Order now and experience precision, durability, and the professional quality you deserve.
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