SN-7 Series Inverted Cone Carbide Burr 3/4 Head
Product Overview
The SN-7 carbide burr is an essential tool for anyone needing precise and efficient material removal. Crafted to fit both metalworking and woodworking tasks, it's a versatile tool that handles tough jobs with ease.
Whether you're shaping, deburring, or finishing surfaces of cast iron, steel, copper, or brass alloys, this tool delivers outstanding performance. Its compact size and ergonomic design make it suitable for professionals and hobbyists alike.
Get ready to enjoy smooth finishes and rapid stock removal, thanks to the double and single cut options tailored to fit your project’s needs.
Key Features
- Available in both Standard (Single) Cut and Double Cut styles for versatility.
- 3/4 inch head diameter with 3/4 inch cutting length for precise work.
- 1/4 inch shank diameter ensures compatibility with most rotary tools and grinders.
- Right hand spiral flute for general-purpose cutting (Single Cut).
- Combination of right and left hand flutes for super smooth finishes (Double Cut).
- Designed to provide excellent control during grinding.
- Rapid stock removal capability saves time on the job.
- Suitable for use on a variety of metals including cast iron, steel, copper, and brass alloys.
- Compact size fits tight spaces and intricate areas with ease.
- Durable carbide material resists wear and maintains sharpness over time.
Specifications
- Shape / Type: N Series Inverted Cone
- Cut Type: Standard Cut (Single), Double Cut
- Head Diameter: 3/4 inch
- Shank Diameter: 1/4 inch
- Overall Length: 2 inches
- Material Compatibility: Cast iron, steel, copper, brass alloys
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 112-50144
Delivering Consistent Quality for Your Projects
The SN-7 carbide burr is built for professionals who demand reliability and precision every time they pick up their tool. Beyond fast stock removal and smooth finishes, it keeps your workflow running smoothly by lasting longer and resisting wear better than generic alternatives. This consistency means fewer interruptions, less downtime, and steady results project after project. Whether you’re grinding steel engine parts or shaping jewelry components, the SN-7 helps maintain your high standards without sacrificing efficiency.
The Trusted Choice for Precision Cutting
At Burrs4Less, we're proud to support American craftsmanship with burrs manufactured to exacting standards right here in the USA. The SN-7 is part of our N Series line, recognized across the industry for innovation and durability. Using such dependable tools means you get the precision you expect and the peace of mind that your burr will perform brilliantly every time. Plus, its energy-efficient design reduces wasted effort, making your shop a safer, more productive place to create.
Case Study: Real Business, Real Results
Jacksonville, FL - Precision machine shop upgraded their burrs for better finish and control.
"Switching to the SN-7 gave us noticeably smoother finishes and made stock removal faster without sacrificing control. It’s now a staple in our toolkit."
Alex Martinez – Shop Manager
Improved surface finishes by 30% and increased job turnaround speed significantly.
How Double Cut Flutes Enhance Your Finishing Touch
Double cut burrs combine right and left spiral flutes to create a super smooth finish on metal surfaces. Think of it like sanding wood with two different grit levels at once—it balances material removal with surface finishing to avoid rough edges. This cutting action also adds subtle left-hand torque, giving you better control over the grinding tool and minimizing unwanted vibrations. It’s the reason your work feels smoother and looks cleaner without slowing down your workflow.
Installation and Maintenance Guide
Setting It Up
- Ensure your rotary tool is powered off before changing burrs.
- Insert the 1/4 inch shank fully into the chuck or collet.
- Tighten the chuck securely to prevent slipping during use.
- Choose the cut type based on your project needs (Single for stock removal, Double for finishing).
- Wear safety goggles and gloves before starting work for protection.
Keeping It Going
- Clean the burr regularly to remove metal shavings and debris.
- Use a wire brush or specialized burr cleaner for best results.
- Inspect the burr for dull edges and replace if cutting efficiency drops.
- Store burrs in a dry, protected case to avoid damage.
- Avoid excessive force during use to prolong tool life and control.
Frequently Asked Questions
Q: What materials can the SN-7 burr be used on?
It works great on cast iron, steel, copper, and brass alloys, making it versatile for many applications.
Q: What is the difference between single cut and double cut?
Single cut has one spiral flute and removes stock quickly, while double cut combines right and left flutes for smoother finishes and more control.
Q: Will the SN-7 fit my rotary tool?
With a 1/4 inch shank diameter, it fits most standard rotary tools and die grinders.
Q: How do I choose between single cut and double cut for my project?
Use single cut for fast material removal and double cut for smoother, more precise finishes.
Q: Can I use this burr on non-metal materials?
While designed mainly for metals, it can be used on some hard plastics and composites, but performance may vary.
Q: How long will the SN-7 burr last?
Lifespan depends on frequency and material but it’s made from durable carbide to maintain sharpness over time.
Q: Is this burr suitable for detailed work?
The 3/4 inch head diameter allows both aggressive and precision tasks, suitable for detailed shaping and deburring.
Q: What is the shape of this burr?
It’s an inverted cone shape, which is great for angled cuts, chamfering, and tight spaces.
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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 the SN-7 carbide burr! Whether you’re tackling tough metals or fine finishes, this durable, efficient burr is ready to deliver. Add it to your cart today and experience the difference precision makes.
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