The RockRipper is a unique drywall t-square that has perforated holes in the rule portion of the square that allow you to insert a utility blade at your desired rip length. Simply set the t-sqare on the board like normal, insert your utility blade...

Made from durable extruded aluminumVersatile T-square adjusts from 0 to 360 degreesHeavy-duty 2 X 1/4 bladeHas one arm which measures 16" for finding studsHead is notched which enables cutting a 48" board in one pass while the board is standing on the...