Burrs4Less presents the SM-81, a precision-engineered carbide burr designed for professionals who demand both versatility and performance. Ideal for metalworkers and machinists, this tool fits perfectly in the M Series Taper range with a sharp 10 to 31-degree taper angle.
Whether you're working on delicate cast iron or sturdy steel, the SM-81's dual cut options—Standard and Double Cut—offer the flexibility to achieve rapid stock removal or ultra-smooth finishes. Its 3/16 inch head diameter and a length of cut of 5/8 inch strike just the right balance between control and efficiency.
Crafted to enhance your grinding and deburring experience, the SM-81 promises to be the reliable companion that helps you get the job done faster and cleaner every time.
Key Features
Available in Single Cut for fast stock removal and fine surface finishes
Double Cut option combines right and left-hand flutes for super smooth results
3/16 inch head diameter tailored for precision work
5/8 inch length of cut ideal for a variety of applications
3/16 inch shank diameter ensures compatibility with standard rotary tools
Right-hand spiral flute in Single Cut improves cutting efficiency on metals
Double Cut’s slight left-hand action provides excellent tool control
Suitable for use on cast iron, steel, copper, and brass alloys
Durable construction designed for long-lasting performance
Part of the trusted M Series Taper family with 10 to 31-degree taper
Specifications
Shape / Type: M Series Taper 10 to 31 Deg
Cut Type: Standard Cut or Double Cut
Head Diameter: 3/16 inch
Shank Diameter: 3/16 inch
Length of Cut: 5/8 inch
Overall Length: 2 inches
Material Compatibility: Cast iron, steel, copper, brass alloys
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 107-12143
Frequently Asked Questions
Q: Can I use the SM-81 burr on aluminum?
While the SM-81 is optimized for cast iron, steel, copper, and brass, it can be used on aluminum with proper technique to prevent clogging.
Q: What are the benefits of Single Cut versus Double Cut?
Single Cut burrs are ideal for rapid material removal and general purpose use, whereas Double Cut burrs provide smoother finishes and better control.
Q: What rotary tool shank size fits the SM-81?
The SM-81 has a 3/16 inch shank diameter, compatible with most standard rotary tools and die grinders.
Q: Is the taper angle suitable for detailed work?
The 10 to 31-degree taper allows access to tight spaces and fine detail work, perfect for intricate metal shaping.
Q: How long is the cutting portion of the burr?
The length of cut on the SM-81 is 5/8 inch, providing enough surface area for effective grinding without sacrificing control.
Q: Can I use cutting fluid with this burr?
Yes, using cutting fluid or lubricant can help extend the burr’s life by reducing heat buildup during use.
Q: What metals is the SM-81 recommended for?
It’s recommended for use on cast iron, steel, copper, and brass alloy materials.
Q: Is this product made in the USA?
Yes, the SM-81 burr is proudly made in the USA to high quality standards.
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.
