Looking for a versatile cutting tool that delivers smooth, precise results? The SN-81 from our N Series Inverted Cone collection is designed just for you. Whether you’re working with cast iron, steel, or copper, this burr offers the performance you need to get the job done efficiently.
This carbide burr suits metalworkers and fabricators who prioritize both speed and surface finish quality. With options for standard (single) cut or double cut, you can tailor your tool to your specific project demands, making it incredibly adaptable.
Featuring a 3/16-inch head diameter and a sturdy 3/16-inch shank, the SN-81 provides excellent control and stock removal without sacrificing finish. Ready to upgrade your rotary tool collection? The SN-81 is crafted to enhance your workflow and deliver consistent, professional results every time.
Key Features
Available in Standard (Single) Cut and Double Cut options for versatile applications
Right-hand spiral flute on single cut for rapid material removal
Combination of right and left-hand flutes in double cut for ultra-smooth finishes
Ideal for use on cast iron, steel, copper, and brass alloys
Compact 3/16" head diameter allows precision work in tight spaces
3/16" shank diameter designed for strong grip and minimal vibration
2" overall length offers excellent reach and tool handling
Durable carbide construction ensures long tool life and wear resistance
Double cut’s slight left-hand action enhances burr and grinder control
Perfect for both rapid stock removal and detailed finishing tasks
Specifications
Shape / Type: Inverted Cone
Cut Type: Standard Cut or Double Cut
Head Diameter: 3/16 inch
Shank Diameter: 3/16 inch
Overall Length: 2 inches
Length of Cut: 1/4 inch
Material Compatibility: Cast Iron, Steel, Copper, Brass Alloys
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 112-12053
Frequently Asked Questions
Q: What materials can I use the SN-81 burr on?
The SN-81 works great on cast iron, steel, copper, and brass alloys, making it versatile for many metalworking tasks.
Q: What is the difference between single cut and double cut?
Single cut burrs have right-hand spiral flutes suited for fast stock removal. Double cut combines right and left-hand flutes for smoother finishes and more control.
Q: Will the 3/16" shank fit my rotary tool?
The 3/16" shank is compatible with most standard rotary tools and die grinders, but always check your tool specs for compatibility.
Q: Is the SN-81 burr suitable for detailed work?
Yes, the small 3/16" head diameter allows access to tight spots, making it excellent for detailed metal shaping and finishing.
Q: How long is the cutting length of the burr?
The cutting length is 1/4 inch, which provides precise control for your cuts and finishes.
Q: Can I use the double cut burr for rapid cutting?
While double cut burrs deliver smoother finishes, single cut burrs are better suited if rapid stock removal is your main goal.
Q: How do I maintain the burr’s sharpness?
Regular cleaning with a wire brush and avoiding excessive pressure will help maintain sharpness and prolong tool life.
Q: What is the overall length of the SN-81 burr?
The SN-81 has an overall length of 2 inches, providing good reach and control during use.
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.
