Meet the SN-4 carbide burr, a versatile inverted cone designed to fit right into the hardworking metalworker’s toolbox. Whether you’re shaping, smoothing, or removing material, this tool has got your back with precision and efficiency.
If you're dealing with cast iron, steel, or non-ferrous metals like copper and brass, the SN-4’s dual cut options provide the adaptability you need to get the job done just right. Its compact 3/8 inch head diameter makes it perfect for those tight spots.
Ready to tackle your next big project? This burr offers rapid stock removal paired with control and smooth finishes, making it a reliable choice for professionals who value both speed and quality.
Key Features
Available in Standard Cut and Double Cut options for versatile applications
3/8 inch head diameter ideal for detailed work and tight spaces
1/4 inch shank diameter with 2 inch overall length fits most rotary tools
Right hand spiral flute in single cut for rapid stock removal
Combination of right and left hand flutes in double cut for ultra-smooth finishes
Suitable for metal types including cast iron, steel, copper, and brass alloys
Inverted cone shape perfect for beveling, countersinking, and angled cuts
Durable carbide construction ensures long life and consistent results
Designed for excellent control during grinding with a slight left-hand cutting action on double cut
Manufactured to deliver professional-grade performance with every use
Specifications
Shape / Type: N Series Inverted Cone
Cut Type: Standard Cut or Double Cut
Head Diameter: 3/8 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: 112-34114
Frequently Asked Questions
Q: What metals is the SN-4 burr suitable for?
A: It works well on cast iron, steel, copper, and brass alloys.
Q: How do I choose between Standard Cut and Double Cut?
A: Use Standard Cut for faster stock removal; go for Double Cut when you want smoother finishes and better control.
Q: Will the 1/4 inch shank fit all rotary tools?
A: It fits most tools with 1/4 inch collet chucks, but always verify your tool’s specs.
Q: Can I use this burr for woodworking?
A: While designed for metals, it may also work for some woodworking projects but is optimized for metalworking.
Q: What maintenance does the SN-4 burr require?
A: Keep it clean with a wire brush, avoid overheating, and replace when edges dull.
Q: Is the inverted cone shape good for beveling?
A: Yes, it’s ideal for beveling and angled cuts.
Q: Does the burr generate a lot of heat during use?
A: Like all carbide burrs, proper speed and light pressure help manage heat build-up.
Q: What’s the overall length of this burr?
A: The SN-4 has an overall length of 2 inches.
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 Carbide Burrs Direct?
Discover top reasons to pick our carbide burrs for your projects. Factory-direct quality at wholesale prices.
High Heat Resistance
Solid carbide construction maintains hardness even at high operating temperatures.
Maximum Durability
Solid piece construction ensures heat resistance and minimal breakage.
Affordable Pricing
Wholesale rates from USA manufacturer, high performance.
Industrial Heritage
Decades of experience supplying tools to the aerospace and automotive sectors.
