3/16" Solid Carbide Burr SN-81 Standard Cut
Product Overview
Discover the SN-81, a compact powerhouse in our 81 Series of 3/16" solid carbide burrs. Perfectly designed for professionals who need precision and efficiency in metalworking, this miniature burr is a trusty companion for detailed tasks.
Whether you’re shaping, smoothing, or removing stock, the SN-81 is built to handle cast iron, steel, copper, and brass alloys with ease. It offers you a balance of speed and smooth finish options depending on your Selected cut type.
Ready to step up your grinding game? The SN-81 delivers rapid material removal combined with reliability and control, making it an essential tool for any metalworking pro aiming for quality and efficiency.
Key Features
- Compact 3/16" head diameter ideal for precision work
- Available in both Standard (Single) Cut and Double Cut options
- Right hand spiral flute in Single Cut for rapid stock removal
- Combination of right and left hand flutes in Double Cut for smooth finishes
- Perfect for use on cast iron, steel, copper, and brass alloys
- 1/4" length of cut provides excellent control in tight spaces
- 3/16" overall length ensures reach into small or detailed areas
- Solid carbide construction for long-lasting durability and sharpness
- Designed to minimize chatter and maximize control during grinding
- Made in the USA — high-quality craftsmanship you can trust
Specifications
- Shape / Type: 81 Series Miniature Burr
- Cut Type: Standard (Single) Cut or Double Cut
- Head Diameter: 3/16" (0.1875 inches)
- Shank Diameter: 3/16" (0.1875 inches)
- Length of Cut: 1/4" (0.25 inches)
- Overall Length (OAL): 3/16" x 2"
- Material Compatibility: Cast iron, steel, copper, brass alloys
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 112-12053-M
Why Burrs4Less' SN-81 Offers More Than Just a Cut
When it comes to the long haul, SN-81 Cutter burrs are built with intent—not just to perform, but to last. Their solid carbide construction means fewer tool replacements and less downtime, which translates right into your bottom line. Business owners and pros appreciate this reliability because it keeps projects flowing smoothly without surprise delays. Plus, the burr's design inherently reduces vibration and chatter, so your tools and machines don’t wear out prematurely from excess strain.
Beyond materials and sharpness, Burrs4Less stands behind its products with decades of industry experience, pioneering innovations that consistently meet professional demands. They’re a brand trusted nationwide for forging cutting tools that combine quality, safety, and efficiency. These burrs aren’t just about quicker cuts—they’re about smarter work, environmental responsibility through durable designs, and peace of mind for users who rely on them day after day.
Case Study: Real Business, Real Results
Dallas, TX – Upgrading Workflow for Precision Metalwork
"Switching to the SN-81 from Burrs4Less has noticeably improved the fineness and speed of our casting refinements. Its precise cuts and durability really enhance our productivity without constant tool changes."
Jessica Lane – Workshop Manager
Increased output by 35% with reduced tool wear and downtime
How Double Cut Improves Finish and Control
The Double Cut option on the SN-81 combines right and left hand flutes to cut metal from two angles simultaneously. Imagine using both hands to smooth wood instead of just one, making the surface even and reducing splintering. This dual flute action results in a super smooth finish while giving you excellent control over the burr’s movement, making delicate or complex work easier and more precise.
Installation and Maintenance Guide
Setting It Up
- Check that the shank diameter matches your rotary tool collet (3/16")
- Insert the burr straight into the collet to ensure a firm hold
- Tighten the collet nut securely but avoid over-tightening to prevent damage
- Wear safety goggles and gloves before operation
- Start the rotary tool at low speed to test stability
Keeping It Going
- Clean the burr after every use to remove debris and metal chips
- Avoid excessive pressure during cutting to prolong tool life
- Store the burr in a protective case when not in use
- Inspect for wear or chipping before each use, replace if damaged
- Use appropriate cutting lubricant or coolant when working with tougher metals
Frequently Asked Questions
Q: What materials can the SN-81 burr be used on?
A: It works well on cast iron, steel, copper, and brass alloys.
Q: What's the difference between Single Cut and Double Cut?
A: Single Cut burrs have right hand flutes for fast stock removal, while Double Cut burrs combine right and left flutes for smoother finishes and better control.
Q: What size shank does this burr use?
A: It has a 3/16" shank diameter compatible with most rotary tool collets of the same size.
Q: How long is the cutting length?
A: The length of cut is 1/4" (0.25 inches), suitable for detailed work.
Q: Is this burr suitable for detailed metal shaping?
A: Yes, its miniature size and sharp carbide cutting edges make it perfect for precision work.
Q: Can I use the Double Cut burr for controlling chatter?
A: Yes, the Double Cut's slight left hand cutting action helps reduce chatter for smoother operation.
Q: Is the SN-81 made in the USA?
A: Yes, this product is manufactured in the USA ensuring quality standards.
Q: Does the burr require a special lubricant?
A: Using a cutting lubricant or coolant can help prolong tool life, especially with harder metals.
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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! The SN-81 delivers precision, speed, and durability all in one miniature package. Order now and experience the difference in your next project.
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