Meet the SF-1 L6 Extended Shank Double Cut Tree Shape Radius End Burr, a versatile cutting tool designed to give you precision and smooth finishes on tough metals. With a 1/4" head diameter and a 6-3/4" extended shank, it offers both reach and control for detailed work.
This burr is ideal for metalworking pros tackling cast iron, steel, copper, brass, and even non-ferrous metals when using the optional Aluma-Cut variation. Whether shaping, grinding, or removing stock, it’s made for those who demand reliable performance and smooth results.
With double cut flutes combining right and left-hand spirals, you’ll get excellent burr control and exceptional surface finish. Ready to add a sharp tool to your kit that handles the nitty-gritty with ease? This one’s got your back.
Key Features
1/4" Head Diameter for precision work
Double cut flutes with combined right and left-hand spirals
Extended 6-3/4" shank for hard-to-reach spots
Tree shape with radius end for versatile contouring
Aluma-Cut option for use on non-ferrous metals and minimal chip loading
Slight left-hand cutting action provides excellent burr control
Durable carbide construction for long-lasting sharpness
Suitable for cast iron, steel, copper, and brass alloys
Ideal for rapid stock removal with smooth finishing
Compatible with various grinders and rotary tools
Specifications
Shape / Type: Tree Shape Radius End Burr
Cut Type: Double Cut (also available Single Cut & Aluma Cut)
Head Diameter: 1/4"
Shank Diameter: 1/4"
Overall Length: 6-3/4"
Length of Cut: 5/8"
Material Compatibility: Cast Iron, Steel, Copper, Brass, Non-Ferrous Metals (Aluma-Cut)
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 006-17144 XL
Frequently Asked Questions
Q: What materials can this burr cut?
A: The double cut burr is great for steel, cast iron, copper, brass, and with the Aluma-Cut option, non-ferrous metals like aluminum.
Q: What’s the advantage of an extended shank?
A: Extended shanks allow you to reach deeper or awkward spots that standard-length burrs can’t, making them perfect for intricate work.
Q: Can I use this burr on wood?
A: While primarily designed for metals, the burr can shape some hard plastics, but isn’t ideal for woodworking.
Q: How do double cut flutes improve finish quality?
A: Double cut flutes combine right and left hand cuts to reduce vibration and provide smoother, cleaner finishes.
Q: Is this burr compatible with all rotary tools?
A: It fits standard 1/4" collets found on most grinders and rotary tools but double-check your tool’s specs for shank size compatibility.
Q: What speeds should I run this burr at?
A: Carbide burrs typically work best between 10,000 and 30,000 RPM, depending on material and tool.
Q: What maintenance does this burr require?
A: Regular cleaning with a wire brush to clear debris and proper storage keeps the burr sharp and ready.
Q: Can I use coolant with this burr?
A: Yes, using coolant or lubrication when grinding metals that heat quickly can extend burr life.
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.
