The fixed cap is made of insulating material, which can withstand high temperature without deformation
High Quality Tungsten Steel / Excellent Quality / Durable Service / Wide ApplicationUltra-fine grain tungsten steel imported from Germany 93A, made of radiation grinding knife process, high hardness, good wear resistance, good toughness.Under the same material and hardness, radial sharpener blade life is twice as long as ring sharpener and the precision is higher