High Air Pressure DTH drilling bits for Mining BlastingProduct Information-Name: Ballistic DTH Drill Bits Used for High Air Pressure DTH Hammers -Item Number: Drilling Machine Parts-Brand Name: KAIYU-Diameter: 85/90/95/100/105/110/115/120/127/130/135/140/146/152/165/171/190/203/216/254/305/330/343/356/368/381mm-Material: Carbide-Processing Type: Forging-Color: Golden, Red, Blue etc-Packaging: Wooden Case-Delivery: 15-230days-Certification: ISO9001-Place of Origin: Taizhou, Zhejiang,China (Mainland)-Use: Water well,quarry,open pit and underground construction-Advantage: High performance cost ratioProduct Description DTH bits are used for blast hole drilling. It Works with DTH hammer, mainly applied in mining, tunneling, marble quarrying or well drilling, construction and civil engineering projects.Our bit s are interchangeable with Atlas Copco's COP32 34 44 54 64 84, Ingersoll-Rand 's DHD3.5,DHD3.5HD, DHD 340A, DHD350R, DHD 360, DHD380, QL40, QL50 , QL60, QL80. etc.High Air Pressure 3" DTH Bits DHD3.5 Diameter (mm) Gauge button Weight (kg) Part No. 856*φ134.2DHD3.5-85906*φ144.5DHD3.5-90956*φ144.8DHD3.5-951006*φ145.0DHD3.5-1001056*φ145.5DHD3.5-105QL30 Diameter (mm) Gauge button Weight (kg) Part No. 856*φ134.5QL30-85906*φ144.7QL30-90956*φ144.9QL30-951006*φ145.0QL-30-1001056*φ145.5QL30-105High Air Pressure 4" DTH Bits DHD340A. COP44 Diameter (mm) Gauge button Weight (kg) Part No. 1056*φ148.5DHD340-1051107*φ148.8DHD340-1101157*φ149.0DHD340-1151208*φ149.8DHD340-1201278*φ1411.0DHD340-127QL40 Diameter (mm) Gauge button Weight (kg) Part No. 1056*φ149.0QL40-1051107*φ149.2QL40-1101157*φ149.5QL40-1151208*φ1410.3QL40-11201278*φ1411.5QL40-127High Air Pressure 5" DTH Bits DHD350R. COP54 Diameter (mm) Gauge button Weight (kg) Part No. 1357*φ1815.0DHD350-1351407*φ1816.0DHD350-1401467*φ1817.0DHD350-1461528*φ1817.5DHD350-1521658*φ1818.5DHD350-165QL50 Diameter (mm) Gauge button Weight (kg) Part No. 1357*φ1815.5QL50-1351407*φ1816QL50-1401467*φ1816.5QL50-1461528*φ1817.0QL50-1521658*φ1818QL50-165High Air Pressure 6" DTH Bits DHD360. COP64 Diameter (mm) Gauge button Weight (kg) Part No. 1528*φ1822.0DHD360-1521658*φ1826.0DHD360-1651718*φ1827.0DHD360-1711909*φ1828.5DHD360-1902039*φ1829.5DHD360-203QL60 Diameter (mm) Gauge button Weight (kg) Part No. 1528*φ1824.0QL60-1521658*φ1825.0QL60-1651718*φ1827.0QL60-1711909*φ1829.0QL60-1902039*φ1833.0QL60-203Bit Face Face shapeApplicationFlat FaceVery hard and abrasive rock formation.Concave FaceAll kinds of rock formation. especially for medium-hard and homogeneous formation.Convex Facesoft to medium hardDrop Center Facesoft to medium hard and fissured rock formationCarbide Button Shape Selection button shapeApplicationDome/Round ButtonUsually used as gauge buttons of DTH bits, suitable for very abrasive and hard formations.Parabolic/ Semi-Ballistic ButtonUsually used as gauge buttons and front buttons of DTH bits, suitable for medium abrasive and hard formations.Ballistic ButtonUsually used as front buttons of DTH bits,suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft.Sharp ButtonUsually used as front buttons of DTH bits for soft formations where fast penetration rated are possible and button breakage is minimal.Flat Buttonusually used as protection buttons to reduce wear on rubbing surfaces of DTH bits.
