10Pcs Tungsten Carbide Burr Set 6.35mm - 1/4" Shank Double Cut Die

The BLENCEE 10-Piece Tungsten Carbide Burr Set provides machinists, metalworkers, and craftsmen with a versatile rotary kit for detailed grinding, deburring, and shaping tasks. Built with a standard 1/4-inch (6.35mm) shank, these bits fit most common die grinders from brands such as DeWALT, Milwaukee, Makita, and Ingersoll Rand. They solve the challenge of accessing tight spots, cleaning up raw metal edges, and handling intricate surface work across steel, aluminum, and plastic.

Each burr is constructed from heat-treated YG8X tungsten carbide, which resists dulling and chipping through demanding shop jobs. The double-cut flute geometry is engineered to reduce vibration and limit heat buildup during high-speed applications. In practical use, this configuration allows for smoother surface finishes, steady control with no wobble, and efficient material removal during welding cleanup, chamfering, casting, and rust removal.

Variety is a key strength of this kit. The ten-piece selection includes cylindrical, ball, and tree profiles, specifically models SA-1, SA-3, SC-1, SC-3, SD-2, SE-3, SF-3, SL-1, SL-3, and SH-1. This assortment lets you switch rapidly between broad surface smoothing, corner contouring, and fine engraving or jewelry making without needing separate tool sets. Everything packs neatly into a heavy-duty plastic storage case to prevent damage between jobs.

A critical limitation to keep in mind is sizing compatibility. These bits feature a true 6.35mm (1/4-inch) shank and will not fit tools equipped with 6mm collets. In addition, while the set covers a broad range of metalworking and carving applications, the manufacturer does not specify maximum RPM ratings for each specific head shape.

Verdict: This ten-piece carbide set is an excellent addition for fabricators and woodworkers seeking durable, chatter-free grinding bits for standard 1/4-inch die grinders. If your tool uses a 1/4-inch collet and you work with metal or hard materials, this assortment delivers reliable variety and solid performance.

• Piece Count: 10 pieces
• Material: Heat-treated tungsten carbide YG8X
• Shank Diameter: 1/4 inch (6.35mm)
• Cut Type: Double cut
• Included Shapes: SA-1, SA-3, SC-1, SC-3, SD-2, SE-3, SF-3, SL-1, SL-3, SH-1 (cylindrical, ball, tree shapes)
• Case: Heavy-duty plastic storage case
• Collet Compatibility: Fits 1/4-inch (6.35mm) collets; not compatible with 6mm collets

A great fit if you:

• Use a 1/4-inch die grinder from DeWALT, Milwaukee, Makita, or Ingersoll Rand.
• Need to grind welds, remove rust, or deburr steel, aluminum, and plastics.
• Do woodworking, jewelry making, casting cleanup, or metal engraving.
• Want a variety of cylindrical, tree, and ball burrs stored in a dedicated case.

Consider something else if you:

• Own rotary tools or die grinders with dedicated 6mm collets.
• Need micro-shank rotary burrs for smaller hobby drills.

Will these burrs fit a 6mm collet?
No, these bits have a 6.35mm (1/4-inch) shank and are explicitly not compatible with 6mm collets.

What materials can these carbide burrs cut?
They provide clean and consistent cuts on steel, aluminum, and plastic, and can also be used for woodworking, jewelry making, and casting cleanup.

Which burr shapes are included in the case?
The set includes ten pieces spanning cylindrical, ball, and tree shapes: SA-1, SA-3, SC-1, SC-3, SD-2, SE-3, SF-3, SL-1, SL-3, and SH-1.

What should I do if a bit arrives damaged?
BLENCEE offers a replacement at no cost if the product arrives defective.