![]() Another object is to provide an improved portable line boring bar assembly of the character described which is relatively lightweight, simply constructed, and economically manufactured. ![]() Another object is to provide such an improved portable line boring bar assembly for in-line boring the main bearing bores of engines. Another object is to provide such an assembly that is portable. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an improved line boring bar assembly. The only other line boring machine presently available accommodates the entire block which is similar to the machine employed during initial manufacture of the block which is too cumbersome and expensive for use in the field. ![]() ![]() Furthermore, such conventional bars are required to be of a sufficiently large diameter rigidly to hold the tool bit to prevent chatter and the like so that the weight thereof is extremely difficult to be handled by a single workman.
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