A surgical tool, for use in a ligament repair procedure after rupture of the ligament, the tool comprising; a handle having a first end and a second end, the second end capable of receiving and retaining a cutting guide assembly; the cutting guide including an outer wall which defines an internal, space in which there is located a base; a passage defined by the outer wall and base and which allows access for a cutting implement to bone; and at least one formation extending from the cutting guide which locates the tool against bone during cutting; wherein the bone cutting guide, guides the cutting implement through said passage to enable cutting of a bone section which is separated from surrounding bone.