If you’re working with intricate castings or tight, hard-to-reach spots, the SD-6 Flex Shaft Carbide Burr is your new best friend. Sporting a 5/8" ball-shaped head, it’s designed to tackle rounded surfaces with ease.
Perfect for metalworkers and fabricators who need precision and flexibility, this burr’s flexible 3/8" x 12" shaft bends where rigid tools can’t, making those tricky angles manageable. Choose either the standard or double-cut variant depending on how aggressive or smooth you want your finish.
With the option to upgrade to an 18" length, this versatile burr keeps you working comfortably and efficiently — no more stretching or awkward hand positions. Ready to add a new dimension to your metalworking arsenal?
Key Features
5/8" diameter ball-shaped carbide head for perfect rounded surface work
Flexible 3/8" x 12" shaft allows access to hard-to-reach areas
Available in standard cut or double cut options for tailored surface finish
Option to upgrade to an 18" shaft length for extended reach
Durable tungsten carbide construction ensures long tool life
Ideal for working on castings, moldings, and intricate metal parts
Helps reduce operator fatigue by allowing flexible working angles
Compatible with most rotary tools and die grinders
Precision engineered for smooth, chatter-free operation
Multiple shapes and lengths available to fit various project needs
Specifications
Shape / Type: Ball Shape
Cut Type: Standard Cut or Double Cut
Head Diameter: 5/8" (0.625")
Shank Diameter: 3/8" (0.375") Flexible Shaft
Overall Length: 12" standard (option for 18" length)
Material Compatibility: Castings, metals, and various hard-to-reach workpieces
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: SD6L12FLEXSHAFT
Frequently Asked Questions
Q: What is the benefit of a flexible shaft on this burr?
A: The flexible shaft allows you to access tight or angled areas that are otherwise hard to reach with a rigid shaft.
Q: Can I use the SD-6 flex shaft burr on materials other than castings?
A: Yes, it works well on various metals and materials where precision application is needed.
Q: What is the difference between standard cut and double cut?
A: Standard cut offers smoother finish with slower material removal, while double cut removes material faster but leaves a rougher surface.
Q: Is the 18" length sturdier or more flexible than the 12"?
A: The 18" provides more reach but can be slightly less rigid; choose based on your application needs.
Q: What rotary tools are compatible with the 3/8" shank?
A: Most standard die grinders and rotary tools accept 3/8" shanks, but always check your specific tool’s collet size.
Q: How do I maintain the flexible shaft burr for longest life?
A: Regular cleaning after use, avoiding sharp bends beyond specification, and occasional lubrication help maintain performance.
Q: Does the ball shape burr work on concave and convex surfaces?
A: Yes, its rounded shape excels on both concave and convex contours.
Q: Can I use this burr for woodworking applications?
A: While designed for metal, it can be used on hardwoods but may wear faster.
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.
