tool bit的用法和樣例：
例句
- He edged the tool into the crevice.
他把刀具插進(jìn)裂縫里。 - Each tool should be pouched so that it can be readily reached.
每把刀具應擺好，以便能很快地拿到手。 - Special angle strengthened bit design intensifying blade protection and quickly leading powder into screw groove,which reduce resistance and improve in-aperture speed.
特殊角度強化刀頭設計，強化刃部保護，并將粉末快速導入螺旋溝槽，減少阻力，提高進(jìn)孔速度。
