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。 k! w: V+ Z. h7 X1 [# Y8 ], z, n6 v( ~7 Q; R z7 D7 M
New HTT transmission with a heavy duty clutch for fast, solid engagements that transfers engine energy for additional torque.7 P2 O d5 G1 e) M8 k$ Y