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As a rule of thumb, the smallest hole diameter a dth hammer can drill is its nominal size. i.e. standard 102 mm (4”) hammer will drill a hole down to a minimum diameter of 102 mm (4”). the limiting factor is the outside diameter of the hammer, because as the hole diameter reduces due to diameter wear of the bit, airflow is restricted.

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Down-the-hole bits we offer a comprehensive range of dth drill bits to match all conceivable applications. each bit is made from quality alloy steel, and has been precision machined to produce a perfect body, heat treated to the required hardness, given surface compression for fatigue resistance, and fitted with precision buttons manufactured ...

Qualified top sale button bit alloy goods of China supplier for international and nearby trade organization.Becoming the top goods of our factory,our top sale button bit alloy products series happen to be tested and won us qualified authority certifications. For more parameters and solution list details,please click the button to get far more info.


Considering that the firm established, we've got been committed to top sale button bit alloy in China sales and service, we've regularly adhering towards the "quality initial, service first" business philosophy to serve our shoppers and normally place this philosophy all through our top sale button bit alloy sales and after-sales service. We are one of the most strong and comprehensive industry network of modern integrated top sale button bit alloy product sales corporation. Welcome your inquiry!

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