The SM-43 is a precision-engineered miniature carbide burr designed for professionals who demand accuracy and efficiency in metalworking and woodworking projects. Its compact size and sharp cutting edges make it ideal for detailed carving, shaping, and deburring applications.
Perfect for machinists, metal fabricators, and woodworkers alike, this burr ensures smooth operation on a variety of materials including cast iron, steel, and brass alloys. Whether you’re refining intricate parts or rapidly removing stock, the SM-43 delivers dependable performance every time.
With its 7-degree taper and option of standard or double cut flutes, you get both speed and control wrapped in one compact cutting tool. Grab the SM-43 and take your metalworking skills to the next level with a tool that’s built to last.
Key Features
Miniature size with a 1/8" head diameter fits tight spaces and detailed work.
Available in Standard or Double Cut for versatility in different applications.
7-degree taper design enhances cutting efficiency and control.
Standard Cut features right-hand spiral flutes for rapid stock removal.
Double Cut combines right- and left-hand flutes for ultra-smooth finishes.
Excellent compatibility with cast iron, steel, copper, and brass alloys.
Overall length of 1-1/2" for easy handling and reduced operator fatigue.
High-quality 40 Series solid carbide construction ensures durability and long life.
Optimized flute design minimizes burr and vibration during use.
Perfect balance of speed and precision for both professional and hobbyist use.
Specifications
Shape / Type: Miniature Burr (SM-43)
Cut Type: Standard Cut or Double Cut
Head Diameter: 1/8" (0.125")
Shank Diameter: 1/8" (0.125")
Overall Length: 1-1/2" (1.5")
Length of Cut: 5/8" (0.625")
Taper Angle: 7 Degrees
Material Compatibility: Cast Iron, Steel, Copper, Brass Alloys
Brand / Manufacturer: Burrs4Less (USA-based)
Made In: USA
SKU / Part Number: 107-08142-M
Frequently Asked Questions
Q: What materials can the SM-43 handle?
It works great on cast iron, steel, copper, and brass alloys.
Q: What is the difference between Standard and Double Cut?
Standard Cut offers rapid stock removal with right-hand spiral flutes; Double Cut combines right and left flutes for smoother finishes.
Q: What is the taper angle of this burr?
The SM-43 has a 7-degree taper designed for effective shaping and cutting control.
Q: Will this fit my rotary tool?
If your tool accepts a 1/8" shank, the SM-43 will fit securely.
Q: How long is the cutting portion?
The length of cut is 5/8" (0.625"), perfect for detailed work.
Q: Is this burr good for woodworking too?
Yes, it can be used for shaping and carving wood, but it’s primarily intended for metalwork.
Q: How should I clean the burr after use?
Use a wire brush to remove material buildup and keep the flutes clear.
Q: What speeds should I run this burr at?
Use moderate to high speeds recommended for your material to maintain cutting performance.
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.
