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。7 @! [+ d& b8 C. D, H
2 g) A+ ]7 K. NNew HTT transmission with a heavy duty clutch for fast, solid engagements that transfers engine energy for additional torque./ t* T2 _' C3 X- k5 [" H0 k