The Dormer Rotary Burr has J shaped with 60 degree countersink. This rotary burr has DC double cut flute style with close spaced edges for chamfering, making v cuts and welding preparation. It has carbide design for cutting diameter up to 6 mm or above 6 mm carbide head with toughened and hardened steel shank and bright finish.

Double cut geometry
Supports Dormer standards
60 degree countersink shape
Chamfer deburring primary use