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Tydrillbits is one of the professional drill bits supplier in China. Our company supply kinds of mining machine spare parts and construction spare parts for more than 8 years. Welcome to contact us to inquiry our impregnated core bits, diamond non core bits, nmlc core bits, tsp core bits, etc. This article will say something about how to choose the core bit crown in rock coring process. With the development of drill bits, impregnated core bits play a more and more important roles in rock coring of water well drilling and geological drilling. Chossing a suitable core bits can reduce your cost.
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Standard type (no discharge hoe)- suitable for many general rock layer;
Wide type- suitable for cutting stratum with more rock powder, such as mudstone, shale, coal, etc.
Turbo type- suitable for drilling medium-hard broken formations and complete hard formations;
Wide turbo type- suitable for drilling medium to hard broken formataion that has much mud, rock powder;
Round face discharge hole type-suitable for trople surface drilling tools to improve the coring efficiency and reduce the flushing fluid on the core erosion;
Slot face discharge hole type- suitable for PDC drill bits, TSP drill bits, the aim is to increase volume of water flow and reduce the chance of discharge hole blockage. This type core bits is suitable for drilling broken formation with much rock powder and flushing fluid;
Gear type- Suitable for very hard, dense stones, drilling quickly and good effect.
