This is an original replacement part manufactured for use with Hitachi drill drivers. The special self-tapping screw is commonly used to fasten the two halves of the motor housing. This screw is used with several different models and can have multiple applications. The screw is sold individually, please see model diagram for associative parts.
This authentic replacement part is specially designed for use with Hitachi power tools. Ball bearings are used to reduce friction between rotating parts, the rollers help to distribute the weight evenly while the minimal contact area of the ball reduces friction. Over time bearings tend to wear out and may begin to fail eventually requiri...Read moreng replacement. This part is made of high-quality metal and it is sold individually.