Graft caliper marking device

A caliper device for locating a placement of a tunnel to be formed through at least a portion of one of a femur and a tibia for ligament reconstructive surgery, comprising:

• a first member having a distal end comprising a first pick and a proximal end attached to a handle;
• a second member slidably disposed above the first member, the second member having a distal end comprising a second pick extending beyond the first pick while at least a portion of the first pick is positioned within a human body;
• wherein at least a portion of at least one of the first pick and the second pick are charged with electrical radio frequency, wherein a charged corresponding pick burns a surface of the bone upon contact to create at least a mark indicating the placement of the tunnel to be formed through the bone;
• an adjuster adjustably secured to the first member and connected to a proximal end of the second member, wherein manipulation of the adjuster causes the second member to slide from a first position to a second position in order to change a distance the second pick extends from the first pick;
• and
• at least one metric disposed on a top surface of the first member revealed as the second member slides over the first member, the at least one metric for describing at least a portion of distance the second pick extends beyond the first pick.