又看了一下冰钻的解释,说是最新科技,New high torque 2 H.P,可以用8‘, 9’,10‘三种钻头,应该没有问题。 * L' [4 Y# k% x1 K1 u+ M* H: N3 p& y; ?
New HTT transmission with a heavy duty clutch for fast, solid engagements that transfers engine energy for additional torque. I5 {4 W$ L- _7 ?, @8 d1 [. m