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01W310 - Walter SD-3 Double Cut Carbide Burr 3/8 Inch Ball Shape

Packaging: 1 per each
$34.24/ea

Usually ships within 3-5 business days

SKU: 01W310 Categories: ,

OVERVIEW

Precision Grinding with Walter Allsteel Carbide Burrs

The Walter Allsteel Carbide Burr SD-3 (SKU: 01W310) represents the pinnacle of American-made abrasive technology, designed specifically for high-performance material removal on ferrous metals. Engineered with a double cut geometry, this burr features cross-cut teeth that effectively break down chips into small, manageable granular particles. This design not only prevents the tool from loading up during heavy use but also provides the operator with significantly better control, reducing the tendency of the tool to 'pull' or 'climb' over the workpiece.

The SD-3 Ball shape is particularly versatile in industrial environments. With a 3/8-inch head diameter and a 5/16-inch length of cut, it is perfectly suited for contouring operations, milling out round bottom grooves, and deburring the inside of holes or concave surfaces. The 1/4-inch hardened steel shank is precision ground to ensure perfect concentricity, which is critical for minimizing vibration at high RPMs. Reduced vibration translates directly to longer tool life, less wear on the die grinder bearings, and reduced operator fatigue during extended shifts.

Walter Surface Technologies manufactures these burrs using a state-of-the-art CNC grinding process that guarantees consistent cutting angles and flute depth. This consistency ensures that every 01W310 burr performs identically, providing a predictable and high-quality surface finish. Whether used in a CNC machine for automated deburring or in a handheld pneumatic die grinder, the Allsteel SD-3 delivers aggressive stock removal without sacrificing finish quality.

Additional Information
Packaging Description:1 per each
Brand:Walter
Used to Grind:Steel or Stainless
Diameter (in):3/8"
Shape:Ball (SD-3)
Cut Type:Double Cut
Shank Diameter:1/4"
Head Length:5/16"
Material:Tungsten Carbide

INCLUDED

  • 1x Walter Allsteel Carbide Burr SD-3 Double Cut

APPLICATIONS

  • Deburring drilled holes and internal radii
  • Contouring and blending weld seams
  • Milling round bottom grooves
  • Surface preparation on steel and stainless steel
  • Removing porosity or defects in welds
  • General metal fabrication and die maintenance

FAQ

Single cut burrs have one set of flutes and produce long chips, often used for general material removal. Double cut burrs, like this Walter SD-3, have cross-cut flutes that produce small chips, offer better operator control, and leave a smoother finish.

The Allsteel line is specifically optimized for ferrous metals, including mild steel, structural steel, and stainless steel. It is not recommended for soft non-ferrous metals like aluminum, as they may clog the flutes.

For a 3/8-inch carbide burr, the generally recommended speed is between 20,000 and 30,000 RPM. Always refer to the specific tool and safety guidelines, but running too slow can cause chipping, while running too fast can cause excessive heat.

While the 1/4-inch shank will fit a drill chuck, standard drills typically do not spin fast enough (usually only 2,000-3,000 RPM) to use a carbide burr effectively. They are designed for high-speed die grinders.

The SD-3 is a ball-shaped burr. It is primarily used for machining round bottom grooves, contouring concave surfaces, and deburring or enlarging holes where a rounded finish is required.

Yes, Walter Allsteel carbide burrs are proudly manufactured in the USA to ensure high quality and consistency.

The head is tungsten carbide, which is very corrosion resistant. The shank is hardened steel and can rust if exposed to moisture, so it is best to store it in a dry place or with a light coat of oil.

Carbide burrs are generally not resharpened. Once the cutting edges become dull or chipped, the tool should be replaced to maintain safety and performance.

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