DTH Down-the-Hole Drill Bits

Infinity Tool MFG offers DTH hammer bits ranging from 2" to 18" (50.8mm to 457.2mm) across 12 distinct shank/connection models, including COP32, DHD340, QL40, MACH20, MACH33, and more, ensuring compatibility with virtually any DTH hammer system used in the field.

These bits are constructed from high-quality steel bodies fitted with tungsten carbide button inserts. Buyers can choose between Standard, Diamond, or Bluemaxx carbide grades depending on formation hardness and abrasiveness, balancing durability with cost-effectiveness for the specific drilling application.

DTH drill bits are widely used across mining, oil & gas exploration, construction and geotechnical investigation, horizontal directional drilling (HDD), geothermal projects, and water well drilling. Their percussion action makes them especially effective for penetrating hard rock and abrasive formations across these sectors.

Yes, Infinity Tool MFG offers custom manufacturing for non-standard diameters, face shapes, button configurations, and carbide grades in addition to standard off-the-shelf models. Customers can contact the sales team to discuss specific project requirements and receive tailored quotes.

Available shank/connection types include Domintor 100, MACH 20, COP32, DHD 3.5/IR 3.5, DHD 340, MACH 33, Mach40, QL40, SD4/34-15, TD40, 350, and SD5, covering nearly all standard DTH hammer systems used in mining and drilling operations worldwide.

Face shapes (Concave, Convex, Flat, Double Gauge) and button shapes (Domed, Ballistic, Semi-Ballistic) affect penetration rate and durability based on formation type. Softer, uniform rock favors convex flat faces with domed buttons, while harder, abrasive formations benefit from ballistic buttons for improved impact resistance.