In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length. DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes. • Medium to large size drilling diameters • Works in high pressure range, capable of drilling deep hole length. Advantages: 1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of DTH hammer designed according to newest rock drilling theory. 2. Smooth performance and long service life of DTH hammer due to high quality alloy steel materials and advanced processing technology adapted. 3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer. 4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
