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Use one hand to hold the drill bit in place. tighten the jaws of the drills chuck by turning the metal chuck key with your other hand in a clockwise manner. tighten the chuck jaws as firmly as possible. remove the chuck key, and take your hand off the bit. test the drill to see if it is drilling properly.

Pdc bits from 1″ to 18″ and suitable for hdd horizontal directional drilling, oil and gas, geo-thermal, waterwell, construction and mining. infinity’s rock drilling tooling is manufactured in illinois using the highest quality materials and international quality standards.

Our high-performance percussive drilling tools include threaded and tapered drill bits, dth hammers and bits, extension and tunnelling rods, integral and tapered rods, shank adapters and other drill tool accessories. down-the-hole (dth)

115mm mission 40 well drilling dth hammer button drill bit down the hole (dth) hammer bits dth hammer bits roschen hammer bits or dth button bits range in size from 2" hole diameter upwards (50.1mm) to 36 (914...

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