BCJ-GB High Speed Grooving Machine(With Side Trimmed) is used for grooving process (this is the first process for wooden pencil processing, the latter process is lead laying & gluing). It can make slats side trimming before grooving.Slats can be produced into various specifications lead slots and center distances.To groove different sizes of lead slot and center distance,it only need to change the corresponding specification cutter.additional purchase of cutter is required.