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。 * C! k |6 g9 x1 B4 Y, i/ o1 ^5 D( _+ K& e# {" g B
New HTT transmission with a heavy duty clutch for fast, solid engagements that transfers engine energy for additional torque.5 g/ O- T9 J* t) c; A2 h