ReciProMate is a Saw Guide used to turn a Reciprocating Saw into a precision cutting Saw. It has two ways to attach to the 4x4, 4x6 being cut. It can be bolted on using a wrench or rachet, or screwed on for attachment. ReciProMate is the solution to the problem of cutting 4x4 posts tops, on level and on slopes with varying gradients in new posts, or existing fences and deck posts. The Saw Guide provides cutting from 0 to 45 degrees on 4x4 posts, depending on what angle is chosen on level or sloped grounds. ReciProMate makes fence and deck building easier, faster, and safer, and is a very unique Saw Guide to make precision cuts through 4x4 4x6 posts. In building new fences/decks just set posts, then snap a line from end post to end post across all posts to be cut with a caulk line, attach saw guide and make the cuts. For use also with existing fences/decks that need the post tops trimmed to finished desired height and angle. A guide to cutting posts also for panel fence installations. Step by Step Instructions with pictures are found on back of the packaging on how to use the Reciprocating Saw Guide. The Guide is expandable using the screwed on method, by just using longer Reciprocating saw blades, or using longer bolts[not included]