PDC anchor shank drill bitsAnchor drill bit is the drilling tool for fixing the anchor shank in the coal mine,Website: , auger drill bits are devided into hard metal anchor drill bit and polycrystalline diamond compacts (PDC) auger drill bit.PDC anchor drill bit :The two wings of anchor drill bit is the polycrystalline diamond compacts (PDC) as the cutting teeth, which improve the drilling speed greatly, and will replace hard metal anchor drill bit gradualy. working on the soft to medium hard rock formation(f ≤10), drilling speed is more fast, with long lifespan.Standard polycrystalline diamond compacts (PDC) specification: 27-32mm Premiun polycrystalline diamond compacts (PDC) specification: 27-32mmApplication of the anchor drill bit :Anchor drill bit with PDC cutter is mainly applied to the anchor network support hole drilling in underground coal mine, transportation, water conservancy and hydrpower, etc.Manufacturer of PDC anchor shank drill bits in China for many years, with ISO certificate and quality control.PDC Anchor bitApplication: Apply to the anchor-network support hole drilling in coal mine, transportation, hydropower, and so on.Characteristics: high wear resistance and impact-resistant toughness; long drilling life,, drilling efficiency can be promoted sharply in penetration of soft and medium soft formation; laber intensity can be reduced.Colliery    Drilling ToolsMain Standard(mm)DHLMThread    joint274417M14×1.5275417M12×1.75285420M12×1.75295218M14×1.5305018M14×1.5325222M14×1.5325622M12×1.75