Tungsten carbide bit drill 1)material:tungsten carbide 2)size :Dia .33mm,43mm,53mm,67mm,73mm,83mm. Tungsten carbide bit drill 1. Product information :1)Material: tungsten carbide2)Colors:silver3)Size: Dia .33mm,43mm,53mm,67mm,73mm,83mm.4)FOB price :FOB Xiamen USD 0.5-5 /piece 5)MOQ: 1000pcs 2.Picture: Tungsten carbide bit drill