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。 : B& a W3 `( ^, R. s/ i T" k7 {3 Q5 A$ B2 g' G/ H& _1 y+ ?
New HTT transmission with a heavy duty clutch for fast, solid engagements that transfers engine energy for additional torque.' @# u& B2 H+ `2 y3 b! }: t2 S9 |$ K