Allegiance 1/4-Inch Ball Shape Carbide Burr SD-1 Double Cut with 1/4-Inch Shank for Metal Grinding Hollowing and Contouring Steel

The Go-To Burr for Hollowing and Shaping

When you need to hollow out a workpiece, create a concave profile, or deburr the inside of a pipe, a flat burr just won't cut it. The Allegiance SD-1 is a 1/4" ball-shaped burr designed for exactly that. Its "double cut" (cross-cut) flutes give you smooth, controllable grinding and a finer finish, breaking down tough steel and cast iron into small, manageable chips.

Key Features

• Double-Cut Head: Produces small chips for smooth operation and a finer finish. Ideal for ferrous and non-ferrous metals.
• Ball Shape (SD-1): Perfect for hollowing, creating concave profiles, and deburring the inside of pipes or holes.
• Solid Tungsten Carbide: Made from one solid piece of carbide for maximum rigidity, high-heat tolerance, and a long cutting life.
• 1/4-Inch Shank: The industry standard shank, compatible with most 1/4-inch die grinders and rotary tools.
• Versatile Application: Makes quick work of deburring, shaping, porting, and contouring on steel, cast iron, and aluminum.

What's Included

• (1) 1/4" Double Cut Ball Shape Solid Carbide Burr (SD-1 Equivalent)

Specifications