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China leading provider of dth hammer bits and dth drill bits, hunan new diamond construction machinery co., ltd. is dth drill bits factory.

Centering bit 48-20-5495 (included) is recommended for exact spot drilling and to avoid bit wandering during use. the drift key 48-20-5497 (not included) allows for easy removal of the centering bit. the one piece core bits are available in sds-max or spline shanks, ranging from 1-1/2” to 6” diameters and overall lengths of 11-3/8” or 22”, with a drilling depth of 3”.

Mincon offers a complete range of world class drill string components for the mining, quarrying, water well and ground engineering industries world class features that bring real value mincon’s tubular products, the choice of today’s drilling professionals.unique features that offer real value: hole length up to 2500 m hole diameter up to 1000 mm cold … drill pipes read more »

Custom drill bits. custom drilling solutions. when your specific drilling application requires a custom drill or you need added performance and efficiencies, you can rely on rmt. our experience, dedicated cutting tool engineers will design, engineer and insure manufacturing excellence, delivering outstanding drill performance and cost cutting ...

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