Carbide Design of DTH Buttons: Dome(Gauge Buttons), Parabolic(Face Buttons)
Product details
Rock drilling tools ProDrill supplies DTHBits with COP shank type are available in a various range of sizes and with a number of
custom design features for optimum performance in a rock formation.
Rock drill bits Shank type:COP32, COP34, COP44, COP54, COP64; and DTH bits hole diameter: 3", 4", 5", 6", 8"(85mm-350mm).
shank adaptor is the most important part of rock driling tools , which will decide rock drill\'s drilling efficiency and cost.
Convex Face A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if the rock is too hard. For high penetration rate in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
Dome/Hemispherical Buttons Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation. Semi-Ballistic/Parabolic Buttons Excellent penetration rate, but only suited to medium hard and not so very abrasive rock formation.
COP shankDTH hammer bit with convex face, 7 dome & 6 semi-ballistic carbide buttons for water well industries, mining and construction.