If you're on the hunt for a precise and reliable burr to tackle your detailed metalworking tasks, the SD-42 L3 Extended Length Ball Shape Carbide Burr is a solid pick. This tool is designed especially for those who require control, smooth finishes, and versatility in one package.
Whether you're a professional machinist or a dedicated hobbyist working with cast iron, steel, copper, or brass alloys, this burr offers a comfortable balance of rapid stock removal and fine surface texture. Its extended shank provides extra reach for those tough-to-access areas, letting you work smarter, not harder.
What makes the SD-42 stand out is the option between a standard single cut or a double cut, which offers different levels of cutting smoothness and control. Whether you’re removing bulk material or refining surfaces, this burr is built to help you craft projects with confidence.
Key Features
Ball shape head designed for contouring and shaping curved surfaces.
Available in standard cut or double cut for tailored cutting needs.
Extended 3-inch shank for reaching tight or deep spots easily.
1/8 inch diameter head perfectly balances detail work and durability.
Double cut option provides a super smooth finish with better burr control.
Crafted from high-quality carbide for long tool life and wear resistance.
Perfect for use on cast iron, steel, copper, and brass alloys.
Right-hand spiral flute on single cut for rapid stock removal.
Compact head length (1/8 inch) ideal for detailed precision tasks.
Designed to fit standard rotary tools with a 1/8 inch shank diameter.
Specifications
Shape / Type: Ball Shape
Cut Type: Standard Cut or Double Cut
Head Diameter: 1/8 inch (0.125")
Shank Diameter: 1/8 inch (0.125")
Overall Length: 3 inches
Length of Cut: 1/8 inch (0.125")
Material Compatibility: Cast iron, steel, copper, brass alloys
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 004-08012 XL
Frequently Asked Questions
Q: Is the SD-42 L3 suitable for aluminum?
The burr is designed mainly for cast iron, steel, copper, and brass alloys. Aluminum may clog the cutters, so it is less ideal for that metal.
Q: Can I use this burr with a Dremel tool?
Yes, as long as your Dremel has a collet that fits the 1/8 inch shank diameter, it will work perfectly.
Q: How do I choose between standard cut and double cut?
Standard cut is best for fast, rough material removal; double cut offers smoother finishes and better control.
Q: Will the extended length affect tool stability?
A longer shank may slightly increase vibration, but proper collet tightening and tool speed control minimize this.
Q: What materials is this burr not recommended for?
It’s not well suited for plastics or soft metals that can gum up the cutting surfaces.
Q: How often should I replace the burr?
Replace when you notice decreased cutting performance or rougher finish results on your workpieces.
Q: Can I use it for woodworking?
While possible, this carbide burr is optimized for metalworking and may wear faster on wood.
Q: Does the ball shape allow for internal corner work?
Yes, the ball shape helps with contouring and smoothing curves and internal corners effectively.
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.
