... Ground&unground High Quality tungsten carbide rod with one coolant hole or two coolant holes or without coolant hole Specifications-- carbide rod ... dies, cold forging dies, carbide bars, carbide rods, carbide balls, carbide burrs, etc. Along with our company growth, we hope ... 1-30mm, length from 100-330mm;--with one coolant hole or two coolant holes or without coolant hole;--ground and unground;-- ...