Home > custom hollow drill bit

Buy low priced dth drill bits from dth drill bits factory, we provide good quality dth drill bits from china.

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”.

73mm api oil drill pipe2 7/8" oil well drilling tubing casing pipe , find complete details about 73mm api oil drill pipe2 7/8" oil well drilling tubing casing pipe,drill pipe thread protector,api drill pipe,drill pipe manufacturers from steel pipes supplier or manufacturer-hebei yongming geological project machinery co., ltd.

China drill pipeselect 2020 drill pipe products from verified china drill pipe manufacturers, suppliers on made-in-china.

We are suppliers of all kind of custom hollow drill bit moved in market place for fantastic sales, we've custom hollow drill bit type and specification's which will suit our customer's satisfaction. We've also attached custom hollow drill bit samples and other of our requires with the above attached catalog sample.


custom hollow drill bit Supplier with a high business reputation,from China.Our solutions consist of:custom hollow drill bit Goods are mainly exported to European countries,it truly is popular in several nations.

We Export

If you need additional information, or have any special requests for equipment, please fill out the following form.

Contact Us