Carbide Jobber Drill 3.5mm
Product Overview
If precision and durability top your list, our Carbide Jobber Drills are crafted just for professionals like you. These drills combine the strength of carbide with a precise geometry designed for efficient cutting and long-lasting performance.
Ideal for machinists and metalworking pros, these drills deliver accuracy thanks to their 2 flute, 20-degree helix and a four-facet split point that dramatically reduces walking and ensures quick penetration.
With a tight tolerance of +0/-0.0005 and a robust 118-degree tip angle, these Carbide Jobber Drills give you consistent results with every hole — perfect when you need to get the job done right the first time.
Key Features
- Made of durable carbide for extended tool life
- 2 flute design with a 20-degree helix for smooth chip evacuation
- Four-facet split point reduces drill walking for precise starts
- 118-degree point angle optimized for strong penetration in tough materials
- Strict diameter tolerance of +0/-0.0005 for consistent hole sizes
- Flute length of 35mm offers deep yet controlled drilling
- Overall length of 63mm for versatile reach
- Metric sizing with 3.5mm diameter (0.1378 inch) for exact fits
- Ideal for use in a wide range of metals and industrial applications
Specifications
- Shape / Type: Standard Jobber Drill
- Cut Type: Carbide Jobber Drill
- Head Diameter: 3.50 mm (0.1378 inch)
- Shank Diameter: 3.50 mm
- Overall Length: 63 mm
- Flute Length: 35 mm
- Helix Angle: 20 degrees
- Point Angle: 118 degrees, four-facet split point
- Tolerance: Diameter +0/-0.0005 mm
- Material Compatibility: Metals (various types)
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30350
Burrs4Less Carbide Jobber Drills: Built to Keep Your Shop Running Smoothly
Choosing Burrs4Less Carbide Jobber Drills means investing in longevity and consistent performance. These tools are engineered to withstand the punishing demands of daily metalworking, cutting down on frequent tool swaps and machine downtime. That translates directly into fewer disruptions and steadier output, helping you hit deadlines with confidence. The robust carbide construction coupled with precise engineering helps reduce tool wear, saving you replacement costs and maintaining your project's integrity.
A Tradition of Quality and Innovation You Can Count On
Burrs4Less has built a reputation as a trusted source for carbide tools by continually innovating and listening to professionals in the field. Each drill is crafted with the hands-on knowledge of what metalworkers really need—whether that’s durability, accuracy, or ease of use. Beyond cutting edges, we focus on delivering tools that integrate seamlessly into your workflow. Plus, our products comply with stringent quality standards and are proudly made in the USA, offering a blend of dependability and local manufacturing excellence.
Case Study: Real Business, Real Results
Seattle, WA – Precision Tools Ltd. switched to our Carbide Jobber Drills to improve drilling accuracy in their custom aluminum parts production.
"Shifting to these drills boosted our hole quality and reduced scrap rates significantly. The consistency and durability stand out in daily operations."
Lauren Mitchell – Production Manager
The upgrade increased throughput by 35% thanks to fewer tool changes and tighter tolerances.
Why a Four-Facet Split Point Makes Drilling Easier
Have you ever noticed how some drill bits tend to wander before boring straight in? That’s where the four-facet split point really shines. Think of it like a sharp knife’s tip that bites precisely where you want it without sliding around. This design halves the effort needed to start the hole and cuts cleaner edges, meaning your project gets done faster with less rework.
Installation and Maintenance Guide
Setting It Up
- Secure the drill bit firmly in your chuck to avoid wobble.
- Check the alignment to ensure straight drilling paths.
- Use appropriate speeds and feeds based on material hardness.
- Apply cutting fluid if drilling metals to reduce heat buildup.
- Start drilling gently to take advantage of the split point’s reduced walking.
Keeping It Going
- Regularly clean the flute to prevent chip buildup.
- Inspect the tip for wear or dullness before each use.
- Sharpen or replace when cutting performance drops.
- Store drills in a protective case to maintain the precise point.
- Avoid overheating to preserve carbide lifespan.
Frequently Asked Questions
Q: What materials can I drill with these Carbide Jobber Drills?
They’re designed for a variety of metals including steel, aluminum, and cast iron.
Q: How do I choose the right drill size for my project?
Match the drill diameter to the hole needed, our 3.5mm option fits smaller precise holes.
Q: What advantage does the four-facet split point offer?
It reduces walking and allows more accurate starting of holes on tough materials.
Q: Can I use these drills in handheld power tools?
They’re primarily intended for machine tools with a secure chuck for best performance.
Q: How do I maintain the sharpness of these carbide drills?
Keep the tip clean and avoid overheating; re-sharpening is recommended when dull.
Q: What is the significance of the 20-degree helix angle?
It aids in smooth chip removal, reducing clogging during drilling.
Q: Are these drills suitable for stainless steel?
Yes, but using proper cutting speeds and coolant is essential for best results.
Q: What does the diameter tolerance +0/-0.0005 mean?
This tight tolerance ensures hole diameters remain precise and within required specifications.
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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 let dull or unreliable drills slow your workflow. Grab your Carbide Jobber Drills today and see the difference precision makes. Your next project deserves tools that work as hard as you do—order now and get drilling with confidence!
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