?右旋铣刀

右旋蜗杆 right-hand worm; 右旋铣刀 right-hand cutter; right-hand helix (milling) cutter; right-hand mill;right-hand milling cutter; 右旋性 right-hand helicity; ..

?正手刀

... right hand rotation 右向旋转 right-hand cutter 正手刀 right hand worm 右旋蜗杆 ...