Standard Cut Carbide Jobber Drill 4.85mm
Product Overview
Meet the Carbide Jobber Drills, precision-crafted to tackle your metalworking challenges with unmatched efficiency. Designed for professionals who value accuracy and durability, these drills combine smart engineering with a robust build.
Perfect for machinists and fabricators who need reliable tools for repetitive drilling tasks, these jobber drills offer exceptional cutting performance on a variety of metals. Whether you're working on mild steel or harder alloys, these drills can handle the job smoothly.
The standout features include a 2-flute design with a 20-degree helix and a sharp 118-degree four-facet split point. These combine to deliver cleaner holes, better chip evacuation, and longer tool life. Ready to elevate your precision drilling game?
Key Features
- 2 flute design optimized for fast and efficient cutting
- 20-degree helix angle for smoother chip removal
- 118-degree four-facet split point improves centering and reduces walking
- Available in standard cut or double cut types based on your drilling needs
- Precision ground with a tight tolerance of Dia. +.000/-.0005 for consistent hole size
- Flute length of 1-5/8 inches for versatile depth cutting
- Overall length of 2-3/4 inches balances control and reach
- Standard jobber length ideal for general drilling applications
- Compatible with metric size of 4.85mm (approx. 0.1910 inch decimal equivalent)
Specifications
- Shape / Type: Standard Jobber Drill
- Cut Type: Standard Cut or Double Cut
- Head Diameter: 0.1910 inches (4.85 mm)
- Shank Diameter: 0.1910 inches
- Overall Length: 2-3/4 inches
- Flute Length: 1-5/8 inches
- Helix Angle: 20 degrees
- Point Angle: 118 degrees, Four Facet Split Point
- Tolerance: Diameter +.000/-.0005 inch
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 30490
The Burrs4Less Promise: Quality That Keeps Your Shop Running
Choosing Burrs4Less Carbide Jobber Drills means investing in tools that stand the test of time. These drills are designed not just for accuracy but also for long-term operational reliability. That means less downtime for re-sharpening or swapping worn bits, ultimately trimming your maintenance costs and keeping your production line moving smoothly. Our commitment to quality means your business gets consistent performance with every use, making those tight deadlines much easier to meet.
As a USA-based brand, Burrs4Less prides itself on innovation and customer trust. Our carbide tools are crafted with the latest technology and strict quality controls, giving you peace of mind that you’re working with industry-leading products. Plus, by optimizing your tooling, you reduce waste and energy consumption, contributing to a more sustainable shop environment. It’s not just about the specs; it’s about delivering real-world value that your business can count on every day.
Case Study: Real Business, Real Results
Located in Cleveland, Ohio, Precision Metals upgraded its drilling tools to Carbide Jobber Drills for better consistency.
"Switching to these carbide drills has markedly improved our hole accuracy and reduced tool changes. The split point design really helps with center starting, saving us time and scrap."
James Arlington – Production Manager
Boosted operational efficiency by 35% through faster setups and fewer rejects.
How the Four-Facet Split Point Improves Your Drilling
Think of the four-facet split point like having four tiny cutting edges instead of one, which helps the drill bite into the material more smoothly and precisely. Just like a well-balanced knife slices cleaner, the split point reduces walking and keeps your drill exactly where you want it, especially helpful when starting holes on tricky surfaces. This means less wandering, cleaner holes, and less chance of damaging your workpiece—perfect for detailed metalwork.
Installation and Maintenance Guide
Setting It Up
- Check that the drill chuck is clean and free of debris before insertion.
- Insert the drill bit straight into the chuck to ensure proper grip and alignment.
- Tighten the chuck firmly but avoid over-tightening to prevent bit damage.
- Verify that the drill bit is the correct size for your application before use.
- Wear proper safety gear, including eye protection, before starting your drilling work.
Keeping It Going
- Clean flutes of the drill bit regularly during use to prevent clogging and overheating.
- Lubricate cutting area with appropriate coolant to extend tool life.
- Inspect the drill tip for wear or damage after every few uses.
- Sharpen or replace the drill bit when it becomes dull to maintain performance.
- Store the drill bits in a dry, organized case to avoid damage and corrosion.
Frequently Asked Questions
Q: What materials can these carbide jobber drills be used on?
A: These drills are suitable for a wide range of metals including mild steel, stainless steel, and cast iron.
Q: What is the difference between standard cut and double cut drills?
A: Standard cut drills have fewer flutes and are used for general purposes while double cut drills have more cutting edges for faster removal of material in tough metals.
Q: What does the 118-degree four-facet split point do?
A: It helps the drill start more accurately with less walking, producing cleaner holes especially on metal surfaces.
Q: What size shank do these drills have?
A: The shank diameter matches the drill size at approximately 0.1910 inches (4.85mm).
Q: How precise are the drill dimensions?
A: The drills are held to tight tolerances of diameter +.000/-.0005 inch ensuring consistent hole size.
Q: Can I use these drills in standard drill chucks?
A: Yes, they fit standard chucks designed for jobber drills of matching diameters.
Q: What is the typical life expectancy of these drills?
A: Longevity depends on material and cutting conditions, but carbide provides excellent wear resistance compared to high-speed steel drills.
Q: What is the flute length and why does it matter?
A: The flute length is 1-5/8 inches, allowing good chip clearance and efficient cooling during drilling.
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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 workshop with these precision Carbide Jobber Drills. Order now and experience the difference that quality tooling makes in your drilling projects. Get ready to drill smarter, faster, and cleaner today!
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