NQ Impregnated Diamond Bit Wedge Type Good Fluid Evacuation

PRODUCT DESCRIPTION Wireline Diamond Core Drill Bits For Granite / High Performance Core Drill Bit Geological Drilling NC3 Wedge type NQ bit has a very good fluid evacuation function. • Helps with the removal of cuttings and debris by flushing the waterways and keeping them free and clean. Description: The impregnated diamond bits are manufactured using high quality raw materials for optimum drilling performance. These impregnated bits present a metallic layer impregnated of diamonds on its cutting face. These impregnated bits are made by mixing fine diamonds with a metallic powder called matrix. The mixture is then subjected to heat treatment assuring the metallurgical bond of the matrix on the steel blank. To maintain optimal performance during entire bit life, it is important that matrix wear is synchronized with the diamond wear to ensure exposure of new diamonds with sharp edges. As to the packing, it is first packaged by cartons, and then put into the plywood case. Specification: International Standard: C series: AC, BC, BC3,NC, NC2, NC3,HC, HC3,PC, PC3 T series:T36,TB56 TT series:TT46,TT56 T2 series: T2 46,T2 56,T2 66,T2 76,T2 86,T2 101 T6 series:T6 76,T6 86,T6 101,T6 116,T6 131,T6 146 B series:B36,B46,,B56,B66,B76,B86,B101,B116,B131,B146 MLC series:NMLC,HMLC LTK series:LTK48,LTK60   Non-standard also can be made as your requirement. Application Our impregnated bits matrices can be selected according to the chart below Series Number Name of Rock 1 sand, soft shale, chalk, marly shale, med-hard limestone ,salt,frozen soil&ice,soft sandstone,sandy shale,claystone,sandy limestone,soft schist 2-3 soft shale,chalk,marly shale,med-hard limestone,salt,frozen soil&ice,soft sandstone,sandy shale,claystone,sandy limestone,soft schist,med-hard sandstone,siltstone,alluvial deposits,calcitic limestone 4-5 claystone,sandy limestone,soft schist,med-hard sandstone,siltstone,alluvial deposits,calcitic limestone,med-hard limestone,hard limestone,hard shale,dolomitic limestone 6-7 med-hard limestone,hard limestone,hard shale,dolomitic limestone,schist,serpentine,hard & mica schist,siliceous limestone,dolomite,marble,peridotite 7-8 dolomitic limestone,schist,serpentine,hard & mica schist,siliceous limestone,dolomite,marble,peridotite,andesite,pegmatite,hematite 8 dolomite,marble,peridotite,andesite,pegmatite,hematite,magnetit,metamorph schist,gneiss,granite,basalt 9-10 andesite,pegmatite,hematite,magnetit,metamorph schist,gneiss,granite,basalt,gabbro,rhyolite,diorite 10-11 magnetit,metamorphschist,gneiss,granite,basalt,gabbro,rhyolite,diorite,conglomerate,taconite Technical Parameters: SIZE BIT OD Hole Diameter BIT ID Core Diameter inches mm inches mm AQ 1.870/1.880 47.50/47.75 1.057/1.067 26.85/27.10 BQ 2.340/2.350 59.44/59.69 1.428/1.438 36.27/36.53 BQ3 2.340/2.350 59.44/59.69 1.315/1.325 33.40/33.65 NQ 2.960/2.970 75.18/75.44 1.870/1.880 47.50/47.75 NQ2 2.960/2.970 75.18/75.44 1.990/2.000 50.65/50.80 NQ3 2.960/2.970 75.18/75.44 1.770/1.780 44.96/45.21 HQ 3.755/3.770 95.38/96.00 2.495/2.506 63.38/63.63 HQ3 3.755/3.770 95.38/95.57 2.401/2.411 60.99/61.24 PQ 4.795/4.815 121.80/122.30 3.340/3.350 84.84/85.09 PQ3 4.795/4.815 121.80/122.30 3.265/3.275 82.93/83.19