Solid carbide jobber drill bits are generally made of carbide material, which has higher hardness and wear-resistance than traditional high-speed steel drills, and can maintain good cutting performance at high temperatures.
Our carbide jobber drills come with coatings like TiAlN or TiN, which reduce friction, dissipate heat, and further boost wear resistance. This not only extends tool life but also improves chip evacuation, especially when working with tough materials.
link:https://www.mariejcarbide.com/carbide-cutting-tools/tungsten-carbide-drill-bits/3-8-long-solid-carbide-jobber-drill-bit-for.html