3/4" diameter by 1" long Radiused End Cylindrical Carbide Burr (Type SC). Single cut for softer metals and a smoother finish. 1/4" shank fits most die grinders. Manufactured from solid fine-grained Carbide for strength and durability.
All Champion spark plugs are manufactured with built-in design advantages that assure a long life and greater reliability. Champion manufactures more high-performance, aviation-grade spark plugs than any other company in the world.