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。 3 E! p" a% ~0 u/ V$ M' O7 L2 E- S) e, X& W4 [
New HTT transmission with a heavy duty clutch for fast, solid engagements that transfers engine energy for additional torque.% l6 G6 A9 [- P+ K