The difference between eccentric drill bit and concentric drill bit:
1, concentric pipe drilling tool because of its outer bit wall thicker, the same aperture construction, impact power transmission effect is not as good as eccentric drilling tool, only in the hole diameter is larger, the effect is better, but the manufacturing cost is much higher than eccentric drilling tool;
2, eccentric pipe drilling tool not only hole diameter, and simple structure, low manufacturing cost, easy to use, so it has been widely used.
Post time: Jan-04-2022