81 Series 3/16" Solid Carbide Burr Standard Cut
- Buy 50 for $4.60 each and save 39%
Product Overview
Meet the SG-81, a solid carbide burr sized perfectly at 3/16" head diameter and a 1/2" cutting length, designed with precision to handle your detailed metalworking needs. Whether you're grinding, shaping, or deburring, this tool is crafted to deliver smooth, reliable cuts every time.
Ideal for metalworking pros and hobbyists alike, the SG-81 shines in applications requiring both stock removal and fine finishing. Perfectly suited for materials like cast iron, steel, copper, and brass alloys, it offers versatility without compromise.
Choose between a single cut, designed for speedy stock removal, or a double cut that combines right and left hand flutes for a polished finish and enhanced control. Plus, snag a deal on bulk purchases—score 50 pieces or more for just $4.60 each while supplies last!
Key Features
- Head Diameter: 3/16", ideal for miniature and detailed work.
- Cut Length of 1/2" for extended cutting surface area.
- Overall length (OAL) is 2", compact for precision handling.
- Available in Standard Cut (Single Cut) or Double Cut variants.
- Single Cut provides rapid stock removal with a right-hand spiral flute.
- Double Cut offers combined right and left hand flutes for smoother finishes and better control.
- Crafted from solid carbide for durability and wear resistance.
- Perfect for use on cast iron, steel, copper, and brass alloys.
- Designed to minimize chatter for consistent, clean results.
- Great option for both professional users and woodworking enthusiasts looking for quality burrs at bulk pricing.
Specifications
- Shape / Type: 81 Series Miniature Burr
- Cut Type: Standard Single Cut or Double Cut
- Head Diameter: 3/16" (0.1875")
- Length of Cut: 1/2" (0.5")
- Overall Length (OAL): 2" (50.8 mm)
- Material Compatibility: Cast Iron, Steel, Copper, Brass Alloys
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 106-12113-M
The Lasting Value of Quality Carbide Burrs for Your Workshop
Investing in a reliable burr like the SG-81 means fewer tool changes and less downtime. Its solid carbide construction withstands wear far better than steel alternatives, reducing your maintenance costs and keeping your workflow steady. Consistent burr performance also means less guesswork, so your team can focus on precision and productivity rather than frequent equipment checks.
At Burrs4Less, we’re proud to bring you tools designed and manufactured in the USA with decades of industry expertise. This commitment to quality and innovation ensures our customers get burrs that maintain sharpness and balance through rigorous daily use. The SG-81 series continues to be a trusted choice for metalworkers who need tools that stand up to tough jobs while delivering smooth finishes—every time.
Case Study: Real Business, Real Results
Chicago, IL - Midwest Metalworks upgraded to SG-81 burrs for better control in their detailed fabrication work.
"Switching to the SG-81 double cut burrs gave us noticeably smoother finishes and more precise shaping. The left-hand spiral really helps handle control during tricky jobs."
Mark Jefferson – Senior Fabricator
Boosted overall finishing quality by 35% while cutting down reworks on small batches.
Why Double Cut Flutes Bring Superior Finishing and Control
Double cut burrs combine two sets of flutes – one spiraling right, the other left – similar to how a zipper interlocks smoothly on both sides. This design gently scoops and slices the material, providing not just faster cutting but also cleaner, smoother finishes. The slight left-hand action balances the burr, reducing vibrations and giving you better control over the tool, making those intricate passes much easier and more precise.
Installation and Maintenance Guide
Setting It Up
- Ensure your rotary tool or die grinder is powered off before installing the burr.
- Check that the collet size matches the 3/16" shank diameter of the SG-81.
- Insert the burr firmly into the collet without forcing it to avoid damage.
- Tighten the chuck securely to prevent wobbling during use.
- Test spin the tool briefly to confirm stable installation before cutting.
Keeping It Going
- Regularly clean burrs by soaking in a suitable solvent to remove resin and debris.
- Avoid excessive feed pressure to prolong burr life and maintain smooth cutting action.
- Store burrs in a protective case to prevent chips and nicks.
- Inspect burrs frequently for wear and replace when cutting becomes inefficient.
- Use proper safety gear: goggles and gloves help prevent injury while handling and in use.
Frequently Asked Questions
Q: What materials can the SG-81 burr be used on?
The SG-81 works great on cast iron, steel, copper, and brass alloys, making it versatile for various metalworking projects.
Q: Should I choose single or double cut burr?
Single cut burrs excel at rapid stock removal, while double cut burrs provide smoother finishes and better cutting control.
Q: What is the shank diameter of this burr?
The shank diameter is 3/16", fitting standard rotary and die grinders with matching collets.
Q: How long is the cutting length?
The cutting length is 1/2" allowing for efficient removal over a decent surface area.
Q: Can this burr fit on any grinder?
As long as your grinder accepts a 3/16" shank, the SG-81 will fit securely.
Q: Is the burr made in the USA?
Yes, the SG-81 is proudly made in the USA, assuring quality craftsmanship.
Q: Does the double cut burr reduce vibration?
Yes, the double cut’s left and right flutes help balance the burr for smoother operation and less chatter.
Q: Are these burrs good for beginners?
Definitely! Their design offers control and smooth cutting, making them suitable for new users as well as pros.
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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 let the small stuff slow you down—order your SG-81 burrs today and experience the difference precision tooling makes. Grab the bulk deal while it lasts and keep your shop running smoothly with Burrs4Less quality.
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