Discover the SB-50 L3 Extended Shank Double Cut Cylindrical Burr, crafted for professionals who need precision and versatility. With a 1/4" head diameter and a 3" extended shank, it offers enhanced reach and control during detailed metalworking tasks.
This burr is perfect for metalworkers and fabricators dealing with cast iron, steel, copper, or brass alloys. The double cut design combines right and left-hand flutes delivering an impressively smooth finish while maintaining excellent control over your tool.
Whether you’re refining surfaces or removing stock quickly, this burr blends efficiency with finesse. Its extended shank means you can easily access tight spots, making it an essential in your toolbox for any project that demands accuracy and quality.
Key Features
1/4" head diameter providing precise and effective cutting size
Extended 3" shank for better reach into difficult-to-access areas
Double cut design with combined right and left-hand flutes for super smooth finishes
Slight left-hand cutting action enhances control of burr and grinder
Standard cut option available for general-purpose stock removal
Ideal for use on a variety of metals including cast iron, steel, copper, and brass alloys
Durable carbide construction ensures long-lasting performance
Ergonomic design reduces operator fatigue for extended use
Compatible with most handheld rotary grinders
Precision manufactured for consistent and reliable results
Specifications
Shape / Type: Cylindrical Burr
Cut Type: Double Cut (Right and Left hand flutes combined)
Head Diameter: 1/4" (0.25 inches)
Length of Cut (End Cut): 3/16" (0.1875 inches)
Shank Diameter: 1/8" (0.125 inches)
Overall Length: 3 inches
Material Compatibility: Cast iron, steel, copper, brass alloys
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 011-17032 XL
Frequently Asked Questions
Q: What metals can I use this burr on?
This burr works great on cast iron, steel, copper, and brass alloys.
Q: What does double cut mean?
Double cut burrs have right and left hand flutes, giving smoother finishes and less chatter.
Q: Why use an extended shank?
Extended shanks give better reach for hard-to-access areas or deeper cuts.
Q: What size grinder collet fits this burr?
The 1/8" shank fits standard 1/8" collet grinders.
Q: Can I use this on aluminum?
While suitable for metals, aluminum may clog double cut burrs; choose cuts designed for softer metals.
Q: Is this burr suitable for handheld grinders?
Yes, it's designed to work well with most handheld rotary grinders.
Q: How do I maintain the burr for long life?
Keep it clean, avoid excessive pressure, and replace when dull.
Q: Can the burr handle high-speed applications?
Yes, but always follow your grinder’s maximum RPM specs for safety.
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.
