8 Pcs Tungsten carbide rotary burrs set Metarial:Tungsten Carbide Double Cut Shank:6mm Type:cylindrical shape/tree shape/flame shape/torch tree shape/conical shape/pointed tree/ball shape/inverted Cone shape Carbide Burs are used for shaping, grinding and for the removal of sharp edges, burrs and excess material (deburring) Used on pneumatic or electric die grinders Packed by double blister