a pipe tee clamp comprising opposed gripping elements, each said gripping element forming one-half of a vertical throughbore sized to fit snugly around a vertically oriented pipe tee leg when said pipe tee clamp is in a clamping position and each gripping element having a horizontally oriented concave surface sized to fit snugly around at least a portion of a horizontally oriented pipe tee leg when said pipe tee clamp is in said clamping position;

adjustable connecting means for connecting said gripping elements with each other and adjusting a distance between said gripping elements; and

a substantially vertically oriented cutting element having an upward oriented control end, a downward oriented cutting end, and a rotational axis corresponding to a vertical throughbore axis of said vertical throughbore, connected with one of said gripping elements, said cutting element axially movable along and rotatable around said rotational axis.