If precision and versatility had a name, it would be the SB-53 L3 Extended Shank Burr. Designed for metalworking pros who value control and finish, this burr offers a standout combination of extended reach and superb cutting action.
Whether you’re shaping steel, brass, or copper, the SB-53 L3’s double and single cut options ensure your work surface ends smooth and flawless. It’s perfect for anyone needing excellent control alongside fast material removal.
With the extended shank length and dual cut profiles, this burr not only broadens your reach but keeps your operation flowing strong. It’s the reliable sidekick your grinder’s been waiting for.
Key Features
3/16" head diameter delivers precision at every turn
1/2" length of cut engineered for detailed shaping and finishing
Extended 3" shank allows access to hard-to-reach areas
Double Cut option combines right and left hand flutes for ultra-smooth finishes
Single Cut option uses right hand spiral flutes for rapid stock removal
Slight left hand cutting in double cut version offers superior tool control
Versatile on cast iron, steel, copper, and brass alloys
Designed by Burrs4Less for consistent, professional results
Compatible with standard grinders and rotary tools
Durable carbide construction ensures long tool life
Specifications
Shape / Type: B Series Cylindrical Shape End-Cut
Cut Type: Standard Cut or Double Cut
Head Diameter: 3/16"
Length of Cut: 1/2" (End Cut)
Shank Diameter: 1/8"
Overall Length: 3"
Material Compatibility: Cast iron, steel, copper, brass alloys
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 011-12112 XL
Frequently Asked Questions
Q: What materials can the SB-53 L3 burr be used on?
A: It works great on cast iron, steel, copper, and brass alloys.
Q: What’s the difference between single and double cut?
A: Double cut burrs have overlapping flutes for smoother finishes, single cut is faster for stock removal.
Q: What tool shank size fits this burr?
A: The shank diameter is 1/8", compatible with most standard rotary tools and grinders.
Q: Is the extended 3" shank length safe to use?
A: Yes, it offers extra reach while maintaining solid control when installed correctly.
Q: Can this burr be used for both metalworking and woodworking?
A: While primarily designed for metal, it can be used on some hardwoods with caution.
Q: How do I clean the burr when it gets clogged?
A: Use a wire brush or specialized burr cleaner to remove debris.
Q: What cutting speeds are recommended?
A: Moderate speeds prevent overheating — generally between 10,000 to 20,000 RPM depending on material.
Q: How often should I replace the burr?
A: when cutting performance drops or if you see damage, it’s time to replace for safety and quality.
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.
